Criminology.
It is not just a study of crime.
It is an exploration
of the human mind, society,
and the delicate balance between them.
Ow! Ooh!
Ow!
May...
Mason, can you come over?
I don't know what's wrong with me.
*CREDITS*
- Well, it's big, lots of space. - Yeah.
Nice, big telly.
- What do you think, Dad? - Smells funny.
I'm just gonna have a chat with the manager.
Are you gonna be OK?
Yeah, we'll be fine. Won't we, Jackson?
I hate it.
Your new office.
Oh.
It is, erm...
ostentatious.
Professor, the police won't even consider reengaging you
without a psychological evaluation.
I am repulsed by your taste in interior design.
You deduce that I do not wish to be here.
- Brilliant! - Ugh...
These chairs are literally brand-new.
The college has handed your job to a rival,
the police are very reluctant to take you back,
a close friend has gone.
Gone?
She is in Hove.
You and Christina were very close.
It really doesn't help to minimise these things.
The college are engaged in performative decorum.
It will not last.
T-The constabulary call on me in their hour of need.
And unless human nature has undergone
some miraculous transfiguration, that time will come again.
I tell you what, I'll tell you a story, right?
I'm 19 years old, just passed my police exams,
and I reckon I'm something special, right?
And to, erm, swell my head even more,
some of the lads have given me this nickname - "the Owl."
Because you're wise?
Anyway, erm, I'm giving my sergeant the benefit of my wisdom,
and he says, "Oh, that's interesting."
And I'm like, "Yeah, well... you know what they call me?"
The Owl.
- Yeah. - The Owl.
And, erm, my sergeant says,
"Son, look at your collar number," right?
So, I have a look.
My collar number is two-eight-two-oh.
- Two-eight-two-oh. - Yeah.
- The Owl. - Yeah.
- Two-eight-two-oh. - Yeah.
Exactly. She's heard that before. Many times.
- You all right? - Yeah.
The hour is up.
And deducting the cost of my time
from the notional therapeutic benefit,
I believe we have reached the limits...
of what I might gain from further sessions.
I don't think we've made sufficient progress to end these sessions.
You have made insufficient progress.
We has no meaning in this context.
Jasper.
When I mentioned Christina,
you responded by talking about the college and the police.
Aspects of my life I have the power to control.
You were willing to sacrifice your freedom for Christina.
She went back to her husband.
Suddenly, the word "we" is anathema.
One does what is right because it is right.
Not because of some...
theoretical benefit.
I sense a retreat.
Into what?
Tell me, what am I retreating into?
Studied superiority.
Neutered emotions.
Does labelling your clients usually entice them to stay?
When you were in prison, Jasper, you were close to a breakthrough.
Unless you no longer see change as beneficial,
I strongly suggest you continue with these sessions.
No. I do not believe you can provide the police
with a psychological evaluation that is impartial.
Dan.
Did he say anything else to you?
He said he liked it.
He said it smelt funny.
The place was clean.
The staff are friendly.
There's a room available.
It's what your dad needs.
Oh, I'm a terrible daughter.
- Oh, Lisa... - I am.
- Good morning. - Morning.
Looks like an accidental.
That's the boyfriend. He got a call.
I think she'd been drinking.
- Bit early. - Yeah.
Come on.
You're not a terrible daughter.
'May... Mason, can you come over?
'I don't know what's wrong with me.'
Why are we even here?
I'll take a look around.
Uniform could've dealt with this.
She's smashed, she takes a header, end of.
Do you treat everyone like that?
A young woman is dead.
Who are you?
- Show some respect. - Who let you in here?
DI Donckers.
Another SD.
Ten-year-old boy.
St Martin's school.
Two in one morning.
Two seconds.
Excuse me.
A woman with a red tracksuit. Who let her in?
Nobody went in or out.
Excuse me.
What are you doing?
Ah.
Ah!
That has been bugging me all morning.
I'm your new boss.
A welcome-back gift.
- Oh. - Just some chocolates.
When are you taking over from Haiden?
That is what I am here to find out.
Ah, and there is the man who can tell us. Dean.
I'm glad I've caught you.
Your appearance is deceptive.
Well, the thing is, not to put too fine a point on it...
Are you trying to tell the professor that Haiden's keeping his job?
Not my decision.
The Appointments Board.
Professor Tempest was acquitted.
Of one charge, yes, but there remain unspent convictions -
criminal damage and the possession of an unlicensed shotgun.
Then since I am neither welcome, nor back, these cannot be mine.
Don't choke on them!
I asked her how she got into the house and she said side door.
How did she know there was a side door?
I dunno.
And then I saw this.
- Same running club? - No, Dan, it's more than that.
They were close.
- The school's turned into a storm. - Have you met this new boss?
- Yeah. Just had a chat. - And?
- Seemed all right. - Should've been you.
DCI? No, no, no.
Don't need the hassle. Come on, let's go.
For those of you who haven't had the pleasure, I'm DCI Maiya Goswami.
I was due to start here next week,
but sometimes life comes at you fast.
Most of you already know about Amara Dhar and Josh Higson,
but since this morning, there have been four more
unexplained sudden deaths in the South East.
Right now, we don't know what we're dealing with,
but if we assume worst-case scenario's serial killer,
we won't be playing catch-up.
Ron Dumont, 30 years old, farmer.
Leaves a wife and young child. Found dead in his tractor.
Hal Harwood, 47 years old,
co-founder of Harwood's Chocolate Factory with his brother.
Didn't get to work, lived alone, found dead in his car.
Anna Mahon, 27, nurse, died at work.
Dulcie Rhys, 82, body found by her son.
We listened to a message from Amara Dhar to her boyfriend
and she sounded drunk.
And do you think Dulcie Rhys was drunk?
Coincidence.
What about the ten-year-old?
This area averages ten unexplained deaths a year.
Suddenly we've got six in 48 hours.
Most likely cause is poisoning.
But there's nothing to link the fatalities.
Didn't use the same shops, cafes, markets.
Wide variation in eating habits.
What else have we got? Anything?
Well, the factory owner,
he had 800 quid in fives and tens in his pocket.
They're being tested.
OK, let's talk to the families,
talk to the friends, get their statements.
There is a connection here, and it's our job to find it.
Go.
Er, not you two.
Anthony Dixon, the head pathologist, Crammond Gardens.
Make sure he knows this is an absolute priority.
- Yeah. - And one more thing.
I heard you're both in a relationship.
I'm not having it.
So, in view of your ranking,
I'm gonna let you decide who goes out of the two of you.
Sorry, you want one of us to what?
Apply for a transfer.
I've seen couple stuff mess up too many careers.
So, one of you has to go.
Should be me.
You're senior, right?
- Should be me that goes. - No.
We show her we're indispensable.
Couple of days from now, she'll be begging us to stay.
- How? - We're a three-person team.
She's only met two of us.
Professor.
You busy?
You drove to my house to ask me if I'm busy?
We need your help.
I may have missed my vocation.
Oh, yeah?
A sterile, vacuum-sealed environment.
Perfect.
Ah.
Hi. Sorry to keep you waiting.
We're short-staffed.
Bad day for six sudden deaths.
When would be a good day?
Ah, sorry. Erm...
I need to take this. Sorry.
Yeah? Sorry.
Your new DCI, is she aware that you sought me out?
No. Why?
Apparently, I am to undergo a psychological evaluation
before I can resume my indispensable services again.
Forgive me. My wife's not been well.
We're just here to make sure that you prioritise the SDs.
I'm doing my best, all right?
That's all we can ask.
When might I converse with DCI Goswami?
- She's gone home to get changed. - I wouldn't be in a hurry.
I talked to Ron Dumont's widow,
and she says he quit drinking a few years ago.
- Fell off the wagon? - Well, maybe.
Despite the contradictory nature of the evidence,
there'll be a thread of logic linking the cases.
What would make you sound like you'd caned it,
but also be strong enough to kill?
Indeed. DI Donckers, can we find a substance
that causes symptoms similar to alcohol intoxication?
Maybe.
Yes.
"Disturbances in the chemistry of the body that manifest
"as alcohol intoxication can be caused by ethylene glycol."
Osaka, 1997.
A well-known Japanese doomsday cult killed 12 people
by contaminating mirin with ethylene glycol.
They chose mirin because both it and ethylene glycol are sweet.
Therefore, if ethylene glycol is our common denominator,
it will have been added to a foodstuff that contains sugar.
Young and old, farmer and nurse,
everybody loves...
chocolate.
I suggest a visit to Mr Harwood's factory may be in order.
Talk about missing your vocation.
_
When did you last see your brother?
Saturday around five, in the car park.
Look, I know you have to do this, but I'm up to here, you know?
Can you make it quick?
He was found with £800 on him.
Why would he be carrying that sort of cash?
Really have no idea.
- They look good. - Go ahead.
- Really? - Yeah.
Oh, yeah, yum.
Redcap, bestseller.
So, brothers...
Edwyn's the business guy.
Hal was shop floor.
Quality control.
- What's that mean? - Sampled every batch.
What was he like? Off the record.
Backstabber.
Acting like he's your mate.
All along, he's the one pushing for wage cuts.
Not Edwyn?
I heard them arguing about it.
He's in here.
What made you suspicious?
Lilian Gilbreth's book The Psychology Of Management
gave us time and motion studies that increased productivity,
while decreasing fatigue and stress.
Our friend was acting like a wasp in a beehive.
- Ferdy Walters? - Yeah.
Can we have a word?
Six months ago, you were compelled,
along with the rest of the workforce,
to reapply for your job.
"Compelled"?
I wasn't compelled to do anything.
You are correct.
You had a choice - reapply, or leave.
Those that stayed were re-employed
on the condition that they accepted a 40% pay cut.
Bad time to lose 40% of your wages.
We need to take a look at your car.
I'm a single father. I...
I've got a little girl.
Please. Don't do this.
The door was open.
Who are you?
I am Professor Jasper Tempest.
Of course you are.
I am here to request that I be independently assessed.
Yeah, I received it about an hour ago.
You're talking about your psychological assessment.
I have concerns about the impartiality.
I haven't read it.
I don't need to.
I can make my own mind up.
I'm afraid we won't need your services any more.
Yeah, DI Donckers.
Did she tell you what this was about?
No, she didn't.
Hi, ma'am.
Right. So, I've had some information from Anthony Dixon.
All the victims had traces of ethylene glycol in their system.
The lab is still working on finding out
which foodstuff is masking the poison.
We were just with Professor Tempest
- and he had a very similar... - Er... Professor Tempest
is not to be used as an advisor here any more, OK?
We're investigating six possible murders,
this is exactly the sort of case we need him on.
- You haven't worked with him. - That's true.
But he's made quite the impression.
You know this is gonna cost me my job?
We're investigating six murders, Ferdy.
Do you think we wanna be talking about a bag of speed?
The amount you had, that's more than personal use.
So, just tell us what you were doing and you can go.
The Harwoods cut our wages and increased our targets.
I sold a bit of speed to some of the staff,
just to help them get through their shift.
How'd they pay you?
How do you think?
Gilts.
They paid cash.
Fives and tens?
Mainly.
Have you got someone who can look after your daughter?
You received my message?
You know this could earn me a misconduct charge?
Would DCI Goswami prefer the killer to remain at large?
- What have you got? - A strictly unofficial observation.
Ferdy Walters' reduced salary has precipitated an act of revenge.
He poisoned the chocolates?
I am unable to align his loss of status
with the magnitude of the reprisal.
However, noticing an alteration
to the labelling of the outgoing produce,
I perused the Companies House website.
Harwood's was formally Harwood and Dennis Luxury Chocolates,
until two months ago when Justin Dennis
was equal partners with Edwyn and Harold Harwood.
You think he broke into the factory?
What I believe is that Ferdy Walters had someone pulling his strings.
I was sorry to hear about Hal.
We had some good times.
We built something from nothing.
Why did you leave?
Stress.
First few years everything's new, you're full of energy.
Suddenly, you've got 200 on the payroll.
Costs are going up.
Emmy, come back inside. Good girl.
- Is that your daughter? - We never had kids.
Gina compensates by baby-sitting.
How did Hal die?
We're still waiting on a full report.
Good guy, Hal.
OK, a couple of developments.
Hal Harwood died around 36 hours before any other victims.
Also, overnight, two more sudden deaths.
Have warnings been put out?
Warnings?
Well, let the public know not to buy Harwood's chocolate.
- Recall the stock. - No, not yet.
We're just gonna let people die?
I'm glad you feel so passionate about your work,
but, no, the Met's Critical Incident Team
need to clarify exactly which product
has been contaminated before they issue any warnings.
- To protect a business? - To avoid a panic.
Morning.
- What have you got? - We've got a match.
Every one of the sudden deaths had eaten
some type of raspberry-infused dark chocolate.
That's a Redcap.
My wife buys those.
Come on, let the police know.
Mike, can you do me a favour?
Can you go next door, check on Jan?
I knew it.
Redcaps.
Good morning. 'Tis I.
Wilfred.
What do you think?
Well, as you're holding the knife,
it's an achievement that may very well transform the history of art.
What have we said about these
ill-begotten experiments with humour?
- Please accept this as atonement. - What is it?
Oh, it's a surprise.
I conversed with Jasper yesterday.
He was newly returned from a session with Dr Goldberg.
Oh, I thought he'd finished with her.
I fear they've been discussing
the one whose name shall not be mentioned.
Macbeth?
I worry about you sometimes, Wilfred.
Hal Harwood, he was the first to die.
As well as being co-owner of the chocolate factory,
he also tested the product for quality.
Was he your target?
The notes we found on him also contained traces
of amphetamine sulphate. Was he taking a cut?
Ferdy?
Yeah.
He was taking most of it, wasn't he?
Well, it was either that or he was going to the police.
So, the £800, those fives and tens, they were yours?
Yeah.
Those notes also contained traces of ethylene glycol,
the substance responsible for nine deaths.
Here's the thing, Ferdy.
Despite the evidence,
our psychologist doesn't think you actually wanted to kill anyone.
I didn't, I swear on my daughter's life.
I thought I was injecting the chocolates with laxative.
Laxative?
See the look on Hal Harwood's face, rushing to the loo.
How many did you inject?
Twenty.
Twenty?!
The company had treated me like dirt.
I wanted to damage them.
You knew Hal Harwood was dead and you said nothing.
You took a chance 19 people might die,
just so you wouldn't get caught.
Who gave you the ethylene?
Ferdy, people could be dying right now.
You were used, all right?
Whoever used you, that's who we want.
- Who you scared of? - He's got my daughter.
He told me Hal was dead,
said if I talked I'd never see her again.
I don't know what he's capable of.
Ferdy, who gave you the ethylene?
Justin Dennis.
- DS Winters? - Yeah?
I'll take this one.
Mark my territory.
Come on, DI Donckers.
See ya.
According to Ferdy Walters,
Justin Dennis has been talking about going down in flames.
The professor named him right at the start.
Hi. It's me again.
Is Justin in?
He's gone out.
Can you call him?
Erm... I tried. His phone's upstairs.
Have you got any idea where he might be?
No.
Hang on.
I think you need to know what he's done.
Professor? You were right about Justin Dennis.
He supplied the ethylene and now he's disappeared.
Playing out his endgame.
'People affected by loss of status idealise the past.'
He will be at a location he associates with success.
'OK, thank you.'
He made that company!
His skill, his ideas, he made it!
Hal Harwood was supposed to be his friend.
Best friends since school.
Alcoholism is an illness, and they used it to kick him out!
Where's the little girl?
He took her. She doesn't know where.
Do you have any other properties?
Answer the question.
And what makes you so sure that he'll be at this holiday cottage?
It's a hunch.
Right.
_
'I've got eyes on the suspect.
'No sign of the little girl. Buy me some time.'
Mr Dennis. Where is Emmy?
What are you talking about?
Emmy!
How'd you get that blood on your hands?
The window.
Emmy!
We were just playing!
Justin, please, let her go.
All those people.
That wasn't supposed to happen.
- We do know that. - Get out!
Just let Emmy go. I know you don't wanna do this.
Get out!
Emmy, come.
- Argh! - That is for Amara.
Aaah!
It's OK.
I'm gonna come clean.
It was Professor Tempest who told me he'd be in there.
Professor Tempest is unstable.
He's not coming back.
They still let you come up here?
As with so many things, they are blissful in their ignorance.
We arrested Justin Dennis.
Without you, we'd still be chasing our tails.
And yet?
DCI Goswami.
She knows you helped, but she just won't change her decision.
And the contaminated chocolates?
Redcaps.
Twenty were contaminated, all of them have been accounted for.
Eleven recalls were identified in the lab,
- but nine victims. - Nine?
The ninth victim, Anthony Dixon's wife.
So, at the very moment our stressed pathologist
was unravelling the mystery, his wife was poisoned.
Professor.
This is Professor Tempest.
I am trying to contact Ms Ingrid Snares. Thank you.
I would like to speak with Anthony Dixon.
Anthony.
I have just heard the news.
Please describe exactly what happened.
When I discovered the source of the contamination...
You discovered it?
My team.
I immediately called my wife. I was too late.
Did you buy them for her?
No.
She went to Graham's mini-mart last night.
I'm-I'm sorry.
Tempest.
- DI Donckers. - Professor.
For once, it is I that needs your help.
I am trying to contact Ms Snares.
She has completely taken leave of her senses.
- She has gone hiking in Norfolk. - We had a complaint.
- You doorstepped Anthony Dixon. - To confirm my suspicions.
I'm trying to get you reinstated and you really embarrassed...
You'd better be here to apologise.
Anthony Dixon murdered his wife, which means you have a problem.
There is still one contaminated chocolate unaccounted for.
Ms Snares, finally.
Odd question, perhaps.
What was in the welcome back gift box?
Redcaps.
- I take it you have not eaten them? - Ah.
She gave them to the dean.
Could you put your phone away, please,
and tell me why you're making such wild allegations
about Anthony Dixon and...?
The gift Ms Snares gave you, may I ask what became of it?
He very kindly passed the parcel on to my mother.
- Call her! - Did I mention it was my mother?
- She never picks up! - Professor!
Anthony Dixon said that his wife bought the chocolates at Graham's.
Quod erat demonstrandum.
- You all right? - I am not sure.
My unconscious is urging me to hot-wire a police car.
- You can't drive. - Exactly.
Where are we going?
"Quod erat demonstrandum."
And you're telling me that your professor is not unstable.
He has his moments.
Graham's mini-mart, get me the CCTV.
Just to prove him wrong.
End this farce once and for all.
Ooh! Now, what on earth's got into you, Kafka?
Look.
Ah!
Delicioso. Ooh!
- Bugger. - I need to get out.
No, don't...
You scoundrel.
I could send you back to puppy school, you know.
Oh, no.
Spit it out!
Spit, Mother, spit!
Have you gone insane?
You have swallowed it?
My heavens, I shall have to pump your stomach.
Have you gone quite mad?
I must warn you, this is not going to be pleasant.
- Tube, tube... - Kafka?
I need a tube!
He bit the chocolate!
Oh, thank God.
"Thank God"?
Kafka. Jasper, do something.
I am not sure there is anything we can do.
The chocolate was poisoned.
He could smell it.
He sacrificed his life that I might live.
Oh, good boy.
Clever, clever dog!
He saved his mummy's life.
Isn't he an absolute genius?
He just wanted the chocolate.
Mrs Dixon was wearing a green coat with a shawl.
- Blonde hair? - Yeah.
Yeah, I think I've got her.
- What's wrong with her? - You see that?
Anthony said that she wasn't well.
Do you want me to bring him in?
Yes, please.
Professor.
There she is.
Why would Anthony Dixon specify the shop
where his wife bought the chocolates?
Because he knew that the shadow of suspicion would fall on him
and that a cursory glance at the closed circuit images
would convince you of his innocence.
Yes, there.
Look at the wrist.
Did his wife borrow his watch?
Oh.
'What made you do it?'
'I watched what motor neurone did to my mother.
'I wasn't prepared to go through that again.'
'Did you share this with your wife?'
Talked about it.
But did she know?
No.
You're better at your job than I gave you credit for.
Really.
You discover that the source of the poisonings was the chocolate,
but rather than warn the public about it,
you saw an opportunity to murder your wife.
Murder?
No.
No, what I did was nothing but kindness.
Have you ever watched someone you love have their life
torn away from them piece by piece?
You don't get to decide.
DI Donckers.
The CPS will charge Ferdy Walters with manslaughter,
and Justin Dennis with the murders.
What about Anthony Dixon?
Not yet, but they will.
Mercy killing.
How's your dad?
He's not doing so great.
- It's not easy caring for someone. - What would you know?
I'm putting my dad in a home, and he brought me up,
and when it's my turn to take care of him, I...
But that's exactly what you are doing.
You're taking care of him.
Forget Anthony Dixon.
Don't let emotions cloud your judgement.
You're doing the right thing.
Amara Dhar, she was your niece.
You should've recused yourself, but you wanted that arrest.
DI Donckers, you should do as I say, not as I do, and you'll be fine.
OK.
Sorry, ma'am, I just wanna say, I don't think it's fair.
What, me sacking the professor, or splitting you and DI Winters up?
Both.
Lisa, I've seen your file.
You're really good.
You've got the potential for a first-class career.
I know how hard that is, which is why I will always fight
for what I think is best for my team.
I had a former boss who once told me
to treat mistakes as opportunities to learn.
Assuming you're amenable...
we'll continue to call on your help.
- Of course. - On a probationary basis.
Can I ask what made you suspect Anthony Dixon of killing his wife?
I do not believe in coincidences.
Nor do I.
Huh.
I think you've made the correct decision.
May I ask what changed your mind?
I saw an opportunity to learn.
Where do we start?
*CREDITS*