At first Katherine dismisses her early-20s intern as a millennial ‘snowflake’: soft, entitled, moralistic. Yet as Lily’s youth and beauty increasingly remind Katherine of everything she once had, she starts to develop a dark fascination with her new colleague.But is Lily as perfect as she seems - or does she have a sinister hidden agenda? As Katherine is drawn into an obsessive power struggle with the intern, a disturbing portrait emerges of two women hiding dark secrets - and who are desperate enough to do anything to come out on top....

On the hottest day of the year, Caroline Harvey is found dead in Suffolk. Her body is found draped over a cot - but the baby she was looking after is missing. Hundreds of miles away, Siobhan Dillon is on a luxurious family holiday in France when her husband, Callum, is arrested by French police on suspicion of murder. As Siobhan’s perfect family is torn apart by the media in the nation’s frantic search for the missing baby, she desperately tries to piece together how Callum knew Caroline.

Belle likes to think herself immune to the dizzying effects of fabulous wealth. But when her best friend Summer invites her on a glamorous girls' getaway to the Mediterranean aboard her billionaire boyfriend's yacht, the only sensible answer is yes. Belle hopes the trip will be a much-needed break from her stalled acting career and uniquely humiliating waitressing job, but once aboard the luxurious yacht The Lion's Den it becomes clear that all is not as it seems.

She is an exceptionally successful writer whose obsessive readers hound her for every book. But the pressure is extreme. And it’s not just the pressure of finishing her next novel. Years ago when she was a child, Lucy’s little brother went missing and he has never been found. Many people think Lucy was responsible for his disappearance. Lucy herself can’t bear to think about it. Writing a thriller a year is demanding and Lucy depends on her husband Dan to take care of everything in her life. But Lucy finds herself in a real police drama when Dan goes missing.

Kate and Lauren. Sisters who are always there for each other. But as they gather for their weekly Sunday lunch, a knock on the door changes everything. The new arrival, Jess, claims to be their half-sister, but that would mean the unthinkable. That she’s the secret daughter of their beloved, recently deceased father, Harry. Their mother, Rose, is devastated and Kate and Lauren refuse to believe Jess’ lies. But as the fall-out starts, it’s clear that each is hiding secrets and that perhaps this family isn’t as perfect as they appear.

They say she’s guilty. She says she’s not. Who do you believe? "Help me! Help me, please!" When Jenna hears the cry in the park one night, she feels she has no choice but to run and help. Cradling the injured woman in her arms, the attacker nowhere to be seen, all Jenna wants is to keep her alive until the ambulance arrives and for the ordeal to be over. But the nightmare begins when the victim wakes up...Jenna’s relief turns to horror when the finger is pointed at her. There must be some mistake: She’s never seen the woman before in her life, and Jenna tried to save her life.

What do you do when you can't run and you can't hide? Lauren's daughter, Zara, witnessed a terrible crime. But speaking up comes with a price, and when Zara's identity is revealed online, it puts a target on her back. The only choice is to disappear. To keep Zara safe, Lauren will give up everything and everyone she loves, even her husband. There will be no goodbyes. Their pasts will be rewritten. New names, new home, new lives. The rules are strict for a reason. They are being hunted. One mistake - a text, an Instagram like - could bring their old lives crashing into the new.

Nina, in the final days of her illness, asks her best friend Marie to look after her family when she's gone. And Marie does everything she can to step into Nina's shoes after her friend's tragic death. She tries to do the best by Nina, tries to be there for Nina's young children, tries to support Nina's grieving husband, tries to keep their lives on track despite their terrible loss. 

Beth Belmont runs every day, hard and fast on the trail near home. She knows every turn, every bump in the road. So when she spots something out of place - a slip of white paper at the base of a tree - she's drawn to it. On the paper are five names. The third is her own. Beth can't shake off the unease the list brings. Why is she on it? And what ties her to the other four strangers? Then she discovers that the first two are dead. Is she next?

Ailsa Tilson moves with her husband and children to Trinity Fields in search of the new. New project - a house to renovate. New people - no links to the past. New friends - especially her next-door neighbour, the lonely Verity, who needs her help. Verity has lived in Trinity Fields all her life. She's always resisted change. Her home and belongings are a shield, a defence to keep the outside world at bay. But something about the Tilsons piques her interest. Just as her ivy creeps through the shared garden fence, so Verity will work her way into the Tilson family....

Sara made one promise to herself when she was growing up in foster care: that if she was lucky enough to have a family, she’d always do whatever it took to protect them. Looking around her home with its cozy kitchen and living room, where her energetic teenage daughters and gorgeous 4-year-old son all eat, play and live together, she knows she’d do anything to keep them safe. So when Sara’s husband Matt loses his job and every shred of his confidence with it, she knows it’s up to her to bring the family back from the brink.

A young woman turns up at a police station. She has been kept prisoner in her own home. Abused and tortured, her every move watched, her every thought controlled. Now she's finally escaped. That's what she says. But when the police arrive at the address she's given them, her story doesn't seem to add up. Her husband is missing, but his phone and wallet are still in the house. She says she's the victim, but what if she's not? What if the stories she's telling aren't her stories at all....

It all happens so quickly. One day you're living the dream, commuting to work by riverbus with your charismatic neighbour Kit in the seat beside you. The next, Kit hasn't turned up for the boat and his wife, Melia, has reported him missing. When you get off at your stop, the police are waiting. Another passenger saw you and Kit arguing on the boat home the night before, and the police say that you had a reason to want him dead. You protest. You and Kit are friends - ask Melia, she'll vouch for you.

A regular weekday morning veers drastically off-course for a group of strangers whose paths cross in a London café - their lives never to be the same again when an apparently crazed gunman holds them hostage. But there is more to the situation than first meets the eye, and as the captives grapple with their own inner demons, the line between right and wrong starts to blur. Will the secrets they keep stop them from escaping with their lives?

A windowless shack in the woods. Lena's life and that of her two children follows the rules set by their captor, the father: meals, bathroom visits, study time are strictly scheduled and meticulously observed. He protects his family from the dangers lurking in the outside world and makes sure that his children will always have a mother to look after them. One day Lena manages to flee - but the nightmare continues. It seems as if her tormentor wants to get back what belongs to him....