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And as you can see... Yeah?

...we're not in Kansas now, Toto.

So we made it.

I'm out here in the Caribbean with my bestest buddies ever,

on the beautiful island of St Auguste.

It was a long flight - yawn -

but I did keep my skin hydrated.

So I'll give you some tips on that later.

And I got to travel...

Four years studying law, I finally make partner,

and she earns twice as much as me

talking rubbish on the internet.

The world is going to hell in a handcart.

We're going to go suss out the hotel now,

so I'll check in with you guys later!

Cressy, it's going to get seriously tedious if

you're doing that the whole time we're here.

Hugo, sweetie, we wouldn't be here

if I didn't do this, so just shush.

Yeah, we're here. We literally just got off the boat - look.

Christ, now he's at it as well.

No, you see, Daddy's in another part of the world

right now. That's why it's not raining here.

I know I won't be there to tuck you in, sweetheart,

but Mummy will. Course. I'll sing you to sleep

down the phone. Hurry up, Barney.

Bye, sweetie.

Thank you.

Thanks very much.

No, thank you.

These are our rooms.

Bags have already been taken up.

Er, meet for dinner in the restaurant at seven?

Oh, I've got some work calls to make. Can we say eight?

Fine. Great.

Oh! Sorry.

Sorry, sorry. No, um, my fault.

Long flight. Tell me about it.

Hi.

Um, I'm here to check in.

My name's Abigail Warner. I've got a single room booked.

Cressy, please put your phone down.

Oh, just stop. No arguing, you two.

Let's start with two bottles of the Chablis,

two of the Cab Sav and see where we go from there.

God, I hate seeing people eat alone.

We should ask her to join us. Oh, Barn,

you're such a softie.

Don't you bloody dare. I am not in the mood

for awkward conversation with some ran do.

Second that. If I was on my own,

I'd like to think someone would invite me over.

Excuse me?

We were just wondering if you'd like to join us.

That's really very kind of you, but, um,

I'm actually just going to have a quick bite then hit the sack.

I want to get up early for a swim, but, um...

Right.

Maybe another night.

We'll hold you to it.

What?

Right, then, chaps.

I say we all get sloshed.

Cheers. Cheers!

Mm! Certainly fine.

Ugh!

That's not helping in the slightest.

I think I might actually still be a bit drunk, you know.

It was the brandies. We did not need the brandies, Hugo.

You can always say no.

Yeah, but you are very persuasive.

Right, I'm going for a swim, see if that helps.

Good idea. I might join you.

Um, excuse me.

How do we get to the pool?

Morning.

Oh, Maman, I know.

I can't wait to see you too.

I couldn't sleep last night - I was so excited.

I'm all packed.

Boat's leaving in one hour, so...

...not long now.

Is that...?

So, Darlene, I've been thinking.

If we stretch this out till lunchtime,

the Commissioner will have to pay expenses.

And if we really push it,

we might even get an overnight at the hotel.

Dwayne Myers,

I have no desire in getting stuck in a hotel with you

for the night, thank you very much.

Even if it's for free?

Even.

Dwayne? Darlene?

Sarge?! Florence?

I'm really happy to see you, but...

You can't be seen talking with us like this.

What if we blow your cover? No, it's OK, really.

I'm out of witness protection,

as of one hour and one, two, three minutes exactly.

So this is where you've been for the past two years,

here on St Auguste?

And you're allowed to go back to Saint Marie?

Yeah, I am.

Ah! That is the best news.

We'll have to do some real proper celebrating

back on the island tonight.

And the Commissioner told me you're an officer now.

I'm so pleased.

And though it pains me to say it,

she's doing a really good job.

So, what are you doing here?

We got an accidental death reported.

There's no police on the island,

so the Commissioner sent us over.

Who's the victim?

I might know them if it's someone local.

It's a British woman staying at the hotel.

She is only in her 30s.

Poor thing. Can I come with you?

Yeah. Thanks, guys.

OK, Sarge.

So, the victim's name is Abigail Warner.

Arrived from the UK and checked in yesterday afternoon.

Alone? Last-minute booking.

The local doctor is pretty sure Miss Warner drowned.

She assumed Miss Warner banged her head

on the bottom of the pool when she dived in

and knocked herself out.

What a way to go, huh?

No-one was here when it happened?

No, but we do have a definite time of death,

courtesy of the victim's smart watch.

The app monitoring her heart rate shows

it started to slow down at 8.14 and was stopped dead by 8.15.

Mm.

And you've got that look on your face the chief gets

when something is not quite right.

I saw her earlier this morning

when I was running on the beach.

I think it was around 7.30.

OK. And...?

I just think it's odd.

I mean, she went for a swim in the sea

and almost straight after came here

and went for another swim in the pool?

I guess.

But the English like to swim!

Especially when they're on holiday.

Cressida Dempsey and Amelia Templeton

found her body at 8.30.

They dived in, dragged her out.

OK, bring her this way. Is she breathing?

It's not good. OK, let's get her out.

Got no pulse, so went for help.

Apart from seeing her at dinner the night before,

they'd never met the woman.

They're a group of old school friends

here on a freebie.

Cressida is one of those online lifestyle gurus.

Hmph! Never pays for nothing, by the sound of it.

And what are the staff saying?

Well, there's not much to say.

The victim was only here for 12 hours.

She seemed nice and polite.

What are you thinking, Sarge?

There's just something not sitting right.

But it can't be murder.

No-one here met the woman - not the guests, not the staff.

You know what?

Just do some quick background on our victim, Abigail Warner,

and see what comes up.

OK.

Commissioner.

I know, it's been a long time coming.

I'm looking forward to seeing you too.

But that's not why I'm calling.

This is it, Harry.

The great unknown is calling.

Should have upgraded years ago.

Inspector?

Commissioner.

Apologies for the home visit.

I know you're busy making the final preparations

for your trip.

But I'm afraid we have a possible suspicious death

over on St Auguste.

Officers Myers and Curtis are in attendance.

Do you want me and Naomi to head over?

Actually,

we already have a detective in sit...

Oh?

DS Cassell.

Florence?

But isn't she...?

Her protected witness status

was officially terminated this morning.

Oh, right.

But I...

With Miranda Priestley incarcerated for life

and her criminal network shut down,

DS Cassell's risk-to-life evaluation

has been downgraded.

Right, well, uh...

...that's...great, I guess.

Good.

With no police station over on St Auguste,

I think DS Cassell should lead the case on the ground,

and you and DS Thomas should head up the investigation here.

OK.

Hmm.

OK.

Actually, they're just arriving now, Darlene.

I'll let them know. OK, bye.

Commissioner, Inspector.

I think DS Cassell is right about this.

The whole thing is getting odder by the minute.

We've been looking into the victim,

um, Abigail Warner,

and it turns out she attended an exclusive private school

called Hardens in west London in her teens.

Now, Darlene said the guests who found the victim

were quite...

..."highfalutin" is the word she used.

So we did a quick check and found...

...this.

Hi, guys!

I've got some really exciting news for you.

Next week, I'm headed out to this funky little hotel

in the Caribbean with three of my best friends

from Hardens. Eee! I can't wait!

So there were four other people staying at the hotel

who went to the same school as the victim?

Not just the same school, Inspector.

They were in the same year as her.

So you did know who Abbey was.

We need to tell them the truth.

They're going to find out sooner or later.

Aren't they, Cress?

Go on.

So, last night,

when we first saw Abbey,

we genuinely, cross my heart, didn't recognise her.

God, I hate seeing people eat alone.

But?

After Barney spoke with her briefly,

I sort of started to remember.

Something about her, you know - it just rang a bell.

You realised it was an old school friend?

I'm sure it's her. Abbey Warner.

Sorry, can we just be clear about this?

Because facts do matter,

especially when you're throwing around

wild accusations about murder.

The simple truth is Abbey was not our friend,

all right?

So you didn't like her, then?

No, that's not what I said.

Please don't twist my words.

What I'm saying is, we hardly knew the girl.

Which is why we're not likely to go and kill her, are we?

When you realised you recognised her,

did you go speak with her?

Do you want to field that one, Cress?

I was already going to, all right?

Um, I went to see her...

...in her bedroom this morning, before breakfast.

She was just heading out for a swim.

What did you say?

Just that we knew it was her,

we'd checked her name with reception and, well,

what was she doing here?

And what did she say?

Nothing, really.

Just that it wasn't what I thought

and that I should just leave her alone.

And I admit I may have got a little irate.

The maid gave me some funny looks

when I left Abbey's room, but...

...I didn't kill her.

I already checked with the maid,

and she confirmed that she heard raised voices,

saw Miss Dempsey leaving shortly after.

Fine! Forget it.

That was just before eight o'clock.

So Abbey came back to her room after swimming on the beach.

Yeah.

What did you do after that?

I came straight down

and met the others for breakfast.

You can ask the staff if you don't believe us.

You were all here until the two of you

went dawn to the pool at half past

and found Miss Warner dead?

You're not saying that it was

anything more than an accident, are you?

We're not ruling anything out.

OK...

I think we're good to... go.

Commissioner!

It's so nice to see you.

And you, DS Cassell, and you.

I'm just sorry it's not in person.

Soon, though. I'll be back soon.

And Naomi! Hi.

Hey, Sarge. You look so well.

Hey, Florence.

You haven't changed a bit.

Neither have you.

Still got your rucksack?

Yeah. Don't leave the house without it.

It's really great to see you.

You too.

Er, I'm afraid, as much as I would like nothing more

than to catch up, we do need to focus on the case.

Sure, sir. Of course.

So, Dwayne and Darlene have bagged up

all the evidence from the scene.

Should be on its way back to you shortly.

There's a change of clothes being sent over on the boat for them both.

I've liaised with the UK police to arrange a search

of the victim's home, and the Commissioner

broke the news to Miss Warner's mother.

Was she able to tell us anything?

Not much.

It was a shock for her, as you'd expect.

Abigail lived a little outside London,

worked for a large city accountancy firm,

currently not in a relationship.

I'm going to speak with her more in the morning,

when we've worked out what we're dealing with here.

Also, I checked with reception,

and Abbey only made the booking a few days ago,

not long after Cressida Dempsey announced their trip

on social media.

So, she came to St Auguste possibly knowing

that her four old classmates would be there.

And 12 hours later, she's found dead.

Suspicious, to say the least.

Hmm.

Except, if her death wasn't an accident

and someone drowned her,

our four likely suspects were together in the restaurant

when it happened at 8.15.

So if it was one of them that did it, then...

How?

We're screwed, aren't we?

Really properly screwed.

So, it's such good news about Florence.

It was so lovely to see her today.

Do you know when she'll get back to Saint Marie?

Before Neville leaves?

Hopefully.

Do you know what exactly happened

between the both of them?

I mean,

I know he liked her, and...

...he seemed to really miss her when she left.

But did anything ever actually happen?

Neville wanted more...

...but Florence...

He would always only be a friend to her.

He still cares about her, I think.

But I don't know if he admits it to himself.

Thanks.

So, the Sarge is at the crime scene taking another look.

She wants us to search the victim's room.

Oh!

I take it you're enjoying your stay here, then?

I slept like a baby on a log.

And as for dinner,

I really took advantage of room service, you know.

So what did you order?

What didn't I order?

A plate of accras. Mm.

Fish and coconut sauce,

a side of callaloo

and banana cake for dessert.

Oh, and a few cold beers to wash it all down.

I could really get used to living the high life, you know.

Mm-hm. Mm-hm.

Yes-I!

Morning, Sarge.

Sarge? DS Thomas just called.

They've got something for us.

Hugo Kingsley. Aspiring politician.

Heads up a think tank in Westminster.

Been allocated a constituency for the next election.

Hmph! He's not a very nice man if you ask me.

He is as snotty as they come, hmph!

And he's also a liar.

There's way more history between him and the victim

than he's admitting. Go on.

The Commissioner spoke with Abigail Warner's mother

again this morning.

Turns out she was on scholarship at Hardens.

She's from a very different background

to these other guys.

Raised by a single-parent mum

on a council estate in Rotherhithe.

According to Abigail's mother, she hated her time at school.

Felt like she never really fitted in.

Got teased, then bullied - badly.

A lot of which was instigated by Hugo Kingsley.

Sounds like he made her life pretty miserable.

Definitely not a nice man, Darlene.

Hmm.

Your school records,

showing a handful of complaints

made against you by Abigail Warner.

And from what her mother tells us,

there's a lot more that Abigail never reported.

I don't know what you want me to say.

She was just some girl at school.

Maybe I did behave a little ungraciously towards her.

You don't get away

with calling your behaviour "ungracious".

We have read that school report.

Can we just stop being quite so judgy, please?

I thought you were here to solve a murder,

not adjudicate on my past misdemeanors.

So you admit what you did was wrong?

I suppose I may have treated Abbey not brilliantly,

but, you know, I was dealing with some pressures of my own.

Like what?

My father expected a lot academically.

He could be pretty hard on me at times.

Not what you'd call a forgiving man.

So I guess I deflected some of that onto Abbey.

She became a sort of punchbag, I'm somewhat ashamed to admit.

Why her? Why pick on Abbey?

Because she was an easy target.

The scholarship girl -

stuck out like a sore thumb with that accent

and her bad hair, cheap clothes...

But, look, why you think any of this would mean

I'd go and drown the woman now, I really don't know.

We still don't know what Abbey was doing here.

But if she was threatening you with revenge,

outing you as a bully...

Which she wasn't, to be clear.

But if she was...

...and with you about to stand for public office...

Probably wouldn't want that getting out, would you?

Look...

I'm not proud of how I treated Abbey,

but if she'd come here looking for some sort of retribution

all these years later...

What?

Let's just say... there's others did worse than me.

I don't know why Hugo would say that about me.

It just didn't... didn't happen. Any of it.

Mr Keats, there are ways we can find out

if what he's alleging is true.

We can contact the mobile phone network provider.

I know this all happened some time ago,

but there will be records of it.

I was a very different person back then.

I was 16. I didn't know any better.

So, then, tell us your version of what happened.

Um...

Abbey and I, we, er... We got together...

...for a while.

I hadn't yet been with a girl,

and I was pretty keen to...

What about Abbey? Did she like you?

A bit, I guess.

She was all right, you know, if you got to know her.

She was a bit... a bit shy, a bit awkward, but...

...nice.

I thought it would get me some kudos with the other lads.

It just became a bit of a joke that I was sleeping

with the girl from the council estate.

So I started to resent her.

Is that why you got her to send you some photographs of her -

naked -

that you then shared with your friends?

You know that's a crime? I didn't then...

And if Abbey was to have pursued it,

even now, 15 years later,

you would be arrested and very possibly charged.

I can see how this looks,

but I've got two little girls back home

who mean the world to me,

and the thought of losing them,

going to jail for murder, it doesn't bear thinking about.

I promise you, DS Cassell, it wasn't me that killed her.

Hugo, what on earth are you playing at,

dropping me in it like that?

Seriously, Barney, just calm down.

Come on, Barney, they'd have found out sooner or later, like they did with me.

I was doing you a favour, getting it over and done with.

Look, you can bury these things as deep as you like,

but it all surfaces at some point,

and you're deluded if you thought otherwise.

I'm off for a dip in the sea.

See you at dinner?

Yeah. Thank you.

Yeah, that is great. Thanks very much.

So, the UK police have just finished searching

Abigail Warner's flat. They found a journal

that she'd started a few months ago,

and there's references to all four suspects in it.

They're going to scan it and send it over.

I spoke to Abigail's GP.

She's had therapy on and off over the years.

Started in her early 20s.

I think what happened at Hardens

cast a bit of a shadow.

She suffered anxiety and some depression.

So why come all the way here,

to a hotel where the people who bullied you are staying,

all these years later?

What did she want?

Also...

...the postmortem and toxicology came through -

confirms Abigail Warner's death was due to drowning,

time of death as 8.15.

Huh.

The toxicology report found traces of sleeping tablets

in her system.

Yeah, they were prescribed by her GP.

Dwayne found the bottle in her bedroom.

Why? What are you thinking?

Well, maybe it was an accident after all.

She got sleepy, fell in, banged her head...

Except the pathologist found abrasions to the skin

on her upper arms and shoulders

consistent with someone forcing her under the water.

Well, if that is what happened,

then we're left with the same old problem.

If one of the suspects held her underwater

for the full minute it would take her to die,

how could they have done it?

When they were all sat together

having breakfast in the restaurant

at the exact time it happened.

Yeah.

I'll update Florence.

So I've just done my yoga session for the day.

I'm sipping on a chai latte

and just... feeling kind of super spiritual.

So just wanted to say...

...we are all really blessed to be here.

Don't tell me that you're a fan of hers now.

Not likely.

I don't know what the hell

she's going on about half the time.

So is that the victim's laptop?

According to her internet history,

she'd been watching quite a few of these videos

and looking up the other suspects online

before she came out here.

But there's been no email or phone contact between them.

She also had these.

Plus a plastic case for a memory card,

with no memory card in it or in the camera.

Do you think maybe somebody had taken it?

I did a search of the suspects' rooms.

Nothing inside there.

But we could take a look around the rest of the hotel

in the morning.

It really is lively having you both here.

It's been so long

since I've done anything like this.

You didn't make any friends here?

I was told to keep myself apart

as much as I could.

So, you couldn't speak to people?

I could say hello, make small talk,

just not engage in friendships.

At least not until the court case was over.

That must have been so lonely.

Just you.

Some days were easier than others.

I got into a routine quickly.

It helped.

But every now and then, I'd get tripped up,

start remembering my family and my friends, and...

...all you can think is

how everybody's life is moving forward without you.

You should know, without a doubt,

everyone was missing you so much.

Especially the Inspector, bless him.

It was such a wrench for him seeing you go.

And I missed him.

More than I thought I would.

A lot more, actually.

You did?

When you're on your own for so long,

you start to realise who matters to you most,

because what you miss is how they made you feel.

Do you think you'll tell him when you get back?

I don't know.

Maybe.

Well, well, well, good evening, ladies.

Mm. OK, let's eat.

I'm absolutely starving, you know.

Young lady?

Goodness.

That feels a long time ago now.

There's quite a few like that over a couple of years...

You at Abbey's house, playing together,

looking very much like you were friends.

We were, for a while, good friends.

Why didn't you tell us?

Because nobody else really knew.

It was... It was a secret.

Our secret.

We had such fun.

Abbey was, um, like a different person

when she was away from Hardens,

and all of the overbearing people that were there.

So what happened?

The photos stop when you were both 16.

Did you fall out?

No, things just got a little more complicated,

the way that they can when you're a teenager.

How do you mean?

Cliques formed,

friendships became more territorial.

It started to feel like I had to commit, you know,

choose who my friends were.

But Abbey wasn't one of them?

It was too much to, um,

try and explain or defend why I hung around with her.

I was a coward.

I let her down.

Why did you go and speak with her?

Because one of us had to, I guess,

and I thought she might open up to me more than the others.

But she didn't?

But we only have your word on that.

Sorry?

We don't really know what was said between you both.

I'm not lying.

Why would I lie?

You've already lied to us.

Twice.

Maybe you were the one Abbey had come here to find.

She held you responsible for what happened to her.

Abandoning her.

So you think that's why I might have killed her?

Because I didn't want anyone to find out

that we used to be friends?

Oh, you're not seriously suggesting that, are you?

It's not a good look, is it...

...for you as a...

What is it? ...an influencer?

Your friend was bullied, and you turned your back.

Not great for your brand if that ever made it online.

People can be very judgmental on social media.

But I'm sure you already knew that.

I let someone down, DS Cassell.

It's not my finest moment,

or something I'm particularly proud of,

but it's hardly the crime of the century

or this snappy bit of clickbait you seem to think it is.

Certainly not worth murdering over.

If we're done...?

Hmm.

Sarge? Mm-hm?

Dwayne and I are going to start searching the grounds.

I'll check in with the Inspector.

Ah, um, I should have said.

After our conversation last night

about you-know-who...

Yeah, forget about that.

No, no, no.

You've got to know.

The Inspector is leaving Saint Marie.

Tomorrow, actually. He's going to go travelling.

I should have said yesterday,

but, with Dwayne there, I didn't get a chance.

Wait.

Neville... is going travelling?

I know, right? Who would have thought it?

I'm just saying,

if you were going to, you know, say something,

then you haven't got long.

Morning, Inspector.

Morning, Naomi.

Oh.

Er...

I thought the place would be in more of a disarray,

seeing that you're leaving tomorrow.

Tell me about it. I've still got so much left to do.

I've got stuff to clear out, things to buy for my trip,

accommodation to book.

Plus I need to make a list

of Harry's dietary requirements for whoever moves in next.

I was going to make a start on it all last night,

but I got caught up in the case.

Oh, Abigail's journal.

Found anything?

As a matter of fact, I think I might have. Come on.

So, she started writing this four months ago.

It's something she's done from time to time

since she started therapy.

Did she say what prompted it this time?

There was an incident of bullying at her workplace.

It wasn't involving her directly,

but she helped who it was happening to to deal with it.

Stirred up some bad memories?

Yeah, I think she realised that she never had a chance

to confront her bullies,

never saw justice done, and was still angry about it.

That's why she came to St Auguste - to confront them all?

I think so. But the thing that caught my interest is

she starts referring to one date specifically.

"I keep coming back to that night."

I still struggle to make sense of what happened.

Still feel sick when I remember.

Scares me to go there in my head.

The 5th of March 2010.

We're not far off that date now.

Which is why I cross-checked it, and I found this.

On the night of the 5th of March 2010,

Amelia Templeton was involved in a road traffic accident.

It was near the River Thames, a place called Barnes,

and according to the report,

Abigail Warner was in the car too.

And was it serious?

Well, no-one was injured too badly, but if it was just a minor RTA,

why would it still haunt Abigail?

What was she scared to make sense of?

It's not what you think.

There's no dark secret about that night that I'm hiding from you.

OK, so what happened? Tell me.

There was a party at a friend's house.

Parents away, lots of kids from school.

I was driving there, running late,

when I saw Abbey walking the other way, tears streaming.

So what did you do?

I pulled over and got out.

She looked... broken,

like it had all got too much for her,

the last ounce of resilience stamped out.

Had someone harmed her in some way?

Not physically, no.

She insisted no-one had touched her.

So, what?

It was probably just more of the same.

I - I couldn't leave her like that,

so we got in my car and just drove.

Talked a bit. Me more than her.

About?

I just tried to convince her

that there were just four months till the end of school.

If she could finish her exams and get out of Hardens,

then life would get better.

She just nodded,

like even a few months felt unbearable.

Hmm.

And after that?

I drove her home.

Um, I was distracted, keeping an eye on her.

That's when the accident happened.

Abbey covered for me

so I wouldn't get in trouble with my dad.

It was like a pact between us.

She helped me out

if I didn't tell anyone the state I found her in.

So why do you stay friends with them,

knowing how they treated her?

To be honest...

...we hardly see each other any more-

Just odd things like this, thankfully.

But to answer your question,

it's because I've seen what they can do

if you don't play along.

And even now, all these years later...

...it's safer inside the tent than out.

On the same day she booked the tickets to fly out here

she wrote, "I need to be brave."

Nothing after that.

Which again suggests she travelled to St Auguste

for a reason - to confront her past in some way.

And what about working out

how our killer managed to drown Abigail Warner?

No progress at this end, I'm afraid, sir.

Nor here.

Then I'm afraid yourself, Office Curtis, Officer Myers,

will have to remain on St Auguste another night.

I'm sorry you face a further delay to your return, DS Cassell.

I understand, sir.

And we've still not been able to find the memory card

for Abbey's camera,

so we'll get up first thing to continue the search.

I'm just hoping none of this stops me

from getting back before DI Parker leaves.

A little bird tells me

you're heading off into the sunset...

...to do some travelling!

Er, yeah.

I am, yeah.

Tomorrow.

I'm having a last drink at Catherine's Bar at three.

Hopefully, you'll make it back by then.

I really hope so too.

Inspector?

Have you not gone home?

What about your trip? You leave this evening.

When are you going to do your packing?

I just wanted to try and find something useful to help Florence,

give her a fighting chance of solving this murder

sooner rather than later.

And have you?

And I came in early hoping you wouldn't be here.

Wanted to set the place up...

...for your last day.

You didn't have to do that.

Of course I do.

But now it won't be a surprise.

So you'll just have to watch me put it all up.

We're never going to find it...

Guys? Guys, over here.

Have you found something, Sarge?

I think it belonged to Abbey.

I saw her take it off on the beach.

The memory card!

if one of the suspects held her underwater

for the full minute it would take her to die,

how could they have done it?

The pathologist found abrasions to the skin.

The toxicology report found traces of sleeping tablets in her system.

So Abbey came back to her room after swimming on the beach?

Morning.

She confirmed hearing raised voices,

saw Miss Dempsey leaving shortly after.

"I need to be brave."

Which suggests she travelled to St Auguste for a reason.

Naomi, hold on.

May I?

Of course.

Of course!

I'll need to go and check the swimming pool again,

but I think you're right.

It's the only way the killer could have done it.

And the memory card -

what do you think it was doing in the tree?

I think Abbey left it somewhere. She wanted us to find it.

You think there was something on it she wanted us to see?

On the morning of the murder,

between her leaving the beach after her swim

and being drowned in the pool,

I think Abbey realised someone was trying to kill her.

I no fact, in many ways, the murder was already in progress.

Exactly.

You solved it! You solved it!

We both did.

We always were a good team.

OK, we'd better go and make the arrest now.

OK.

This is the last entry in Abigail Warner's journal,

written over a week ago.

"I need to be brave."

Having lived under the shadow of fear for so long,

enduring what she was put through at school,

and struggling on and off with the fallout,

she wanted change in her life,

a sense of justice.

And the only way for her to achieve that

was to face the demons that had haunted her for so long.

Amelia, you said yourself

you four hardly see each other any more.

Just odd things like this.

Mm.

So, having seen you announce online

that you were all reuniting here, on St Auguste,

I think Abbey saw it as her one chance,

her one shot at standing up to you all.

So...

This video was recorded covertly by Abbey

in her hotel bedroom

the night before she was murdered.

It explains an awful lot.

I'm coming!

I know it's you, so don't deny it.

What's going on, Abbey?

Why are you here? Are you stalking us?

I guess I...

I wanted to see you...

...see if you'd changed.

Well, if you're expecting an apology,

you're not going to get one. You should be apologising to us,

pitching up here uninvited.

You're not wanted.

You never were.

Still just a stain in our lives.

You can't talk to me like that!

Like you used to.

Because unlike you, I have changed,

and I refuse to be a victim any more.

And I'm going to make sure people know what you did to me.

What... what do you mean? What are you going to do?

Take a leaf out of your book.

If you can go online,

telling the world about every little detail

of your life, then so can I.

You wouldn't.

You know...

...I watch you in those videos, Cress,

making out like you're this kind, caring person,

but what you did to me at school,

pretending you were my friend when it was just an act,

a lie.

That night,

that party -

I remember it to this day.

Seeing you with Hugo and Barney,

realising that everything that was happening to me

was dawn to you.

You stirring up rumours.

You goading them into bullying me.

Getting Barney to ask me to send him photos,

just so you could spread them...

...humiliate me.

Why would you do that to someone?

How cruel are you that you'd want to do that?

You are a manipulative little bitch,

and people need to know it.

I'd like you to leave now.

Wow.

And that's why Abbey had to die.

Because she was about to reveal to the world

just who you really are.

And you knew you'd never survive it,

not when all you've got to offer is yourself.

Because I checked.

Six million followers,

a six-figure income,

all gone because Abbey wanted to tell the truth,

to be brave.

I think she probably knew you hadn't changed,

Miss Dempsey,

but I don't think she ever thought for a second

that you would resort to murder.

I - I didn't murder her.

Yes, you did. We know you did.

And we can prove it.

We know how you did it.

The morning after the conversation we just witnessed,

you went to see Abbey again, around seven,

under the pretence of convincing her to reconsider her actions.

But once more, there was an ulterior motive.

You intended to dope her.

Exhibit A - Abigail Warner's sleeping tablets.

I assume you noticed them

when you were in her room the previous night

and realised that would be a method of murder.

So when you visited her the next morning...

...I think you made an excuse to go to the bathroom.

Once you were alone,

you took the powder from the capsules,

and when you went back to the bedroom,

sneaked them into her water flask.

Now, it wouldn't take too long for them to start working,

so I assume you kept an eye on Abbey.

And by the time the sleeping pills

were taking effect,

Abbey had had her swim

and was heading back to her room, feeling...

Here we go. ...suddenly drowsy.

You'd obviously noticed that Abbey wore a smart watch.

You'd worked out

how you could just delay her death in some way.

Then you could give yourself an alibi.

But how?

It's my Inspector who worked it out.

In the photo Abbey took of herself

the night before the murder,

there's an airbed seen floating on the pool behind her.

When I searched the storage area by the swimming pool,

it was deflated.

Exhibit B.

When Abbey was out cold, you did two things.

Firstly, you inflicted a small wound to her head,

so that when her drowned body was recovered,

we'd assume she banged her head on the bottom of the pool.

You then moved her body onto the airbed,

which is what caused the abrasions on her skin.

Then you pushed the airbed into the pool.

Once she was in place...

you began to let the air out.

Having left Abbey like this,

you needed to make sure no-one discovered her.

With the pool having already been cleaned,

there would be no reason for the staff to go down there,

and the guests were all at breakfast.

But just in case one of them suddenly decided to go for a swim,

I think you put out the sign

stating the pool was closed for cleaning,

so if anyone did approach, they'd turn back.

That's right.

When Cress and I got dawn to the pool at half eight,

the sign was still out. Seemed odd.

That can't be right.

This left you one more task to complete -

give yourself an alibi.

So you took Abbey's key, headed back to her room,

and made it appear as if you and she were arguing.

But I just need you to tell me what you're doing here, Abbey.

But what the maid really heard...

Fine! Forget it.

...was just you.

You left the room, making sure that you were noticed,

and went and joined your friends for breakfast,

here at the restaurant.

Meanwhile, the air seeped out of the airbed

keeping Abbey afloat, until it became waterlogged

and sank to the bottom of the pool...

...leaving Abbey face down and unconscious in the water.

And that's how she drowned...

...dying at 8.15 exactly,

while you were surrounded by a restaurant full of witnesses

who would all confirm

you were nowhere near the scene of the crime.

I assume after you and Amelia discovered the body together,

you waited for her to go and get some help,

before removing the deflated airbed

from the pool and putting it back in the storage room.

Abbey's water flask has gone to the lab for testing,

and we all know what the results will be.

The one thing you didn't bank on

was that Abbey was one step ahead of you.

I believe, as she walked

from the beach to the pool that morning,

the sleeping tablets starting to take effect,

she realised something was terribly wrong.

So just in case, she left the memory card

with the footage from the night before on it

in a place we'd eventually find it.

All she wanted was for people to hear what happened to her,

to know the truth of what you did...

...all three of you did...

...and now they will.

Cressida Dempsey, I'm arresting you for the murder of Abigail Warner.

Thank you.

You do not have to say anything, but it may harm your defence

if you do not mention when questioned...

Sarge...

I am so proud of you.

Yeah.

Get off!

I assume that's the last of it.

Oh, no, the time! I forgot.

Hi.

Hey. How'd you get on?

Good. We made the arrest.

Congratulations. I knew you'd nail it.

Thank you. I couldn't have done it without you.

Don't be silly. Course you could.

So, er, I'm at the airport.

Just had my leaving drinks.

Commissioner made a little speech, broadly complimentary.

Nicest he's ever been to me.

The only thing missing was, er... was you.

I'm sorry, I...

Oh, no, no. No need to apologise.

It's not your fault.

"We are now preparing Flight AH142 to Dominica."

Well, er, that's me.

I should probably go and catch my flight.

I really wanted to see you before.

I know.

Just our luck, eh?

It's been really, really lively to see you again, Florence,

even if it's just on a screen.

You too.

So, er, I guess this is goodbye.

Again.

Bye, Neville.

So, how was your day?