She’ll do anything for you.... My name is Alex, and my world has been shattered. My husband has left me. My children won’t speak to me. My friend Carrie is the only person I have. She’s the only one I can trust to keep all my secrets. She’d never do anything to let me down. Would she? This dark, gripping psychological thriller will have you holding your breath until the very last minute.

The last thing to go through Dominique Thomas's head was the image of her teenage daughter's face and her heart lifted. Then the shot rang out. They were the perfect family. Successful businessman Ben Thomas and his wife Dominique live an enviable life, along with their beautiful children: teenager Ruby and quirky younger daughter Mouse. But on Christmas Day the police are called to their London home, only to discover a horrific scene: the entire family lying lifeless, victims of an unknown assailant.

It was supposed to be the happiest day of her life. Zoe was sitting in her hotel room, in her perfect white dress, looking forward to the moment when she would make kind, handsome Toby her husband. Then, there was a blank. They said she must have fainted, overcome with emotion. But nothing felt quite right afterward. Did something happen in that missing time? 

Hannah has done everything to make sure her life is safe and secure. A long way from her unstable childhood growing up in foster care, she’s content with her sweet, little, messy apartment and her satisfying job as a social worker. She quietly worries that, aged 36, she might never fall in love. But otherwise her life is where she wants it to be. Until, encouraged by her best friend to join a dating app, she meets Alex. He’s irresistibly handsome. He loves the same music as her. The same food as well. 

The chaotic but happy equilibrium of the Nightingale family is thrown into disarray when Cecily - whose children can't remember her ever being remotely spontaneous - disappears to a Greek island with no warning or explanation. Her reasons for doing something so out of character are a total mystery to her three daughters, high-powered executive Felicity, unfulfilled GP Julia and organised mother-of-five Lily.

Two-and-a-half-year-old Holly is playing happily in a pink, plastic playhouse, while her mother Rachel sips coffee and chats with a friend nearby. It should be an ordinary day for all of them. But, in the blink of an eye, it turns into every family’s worst nightmare. Holly is taken by a stranger and never found. Nine years later, Rachel is living a quiet life in Dorset. She’s tried to keep things together since the traumatic day when she lost her eldest daughter.

When Ella wakes up in a hospital following a hit-and-run incident, she is scared and confused. Close to tears, her eyes fall on a get-well-soon card on the window sill, and the nurse reassures her that her loving husband will be back soon. But Ella has never been married. In fact, she has lived alone her whole adult life; working hard, rarely socializing, quietly harboring a terrible secret from her past.

Rebecca only wanted to help out - to be kind. Richard seemed so alone after his wife, Nicole, died, and Rebecca wanted to make sure he knew he had someone on whom to rely. But now, she’s in Nicole’s immaculate house. Drinking from her favourite crystal wine glass. Keeping shoes in her orderly closet. Comforting her sweet and grieving stepdaughter. It feels like Rebecca is living another woman’s life.

"Are you my mummy?" Tessa Markham returns home to find a child in her kitchen. He thinks she’s his mother. But Tessa doesn’t have any children. Not anymore. She doesn’t know who the little boy is or how he got there. After contacting the police, Tessa is suspected of taking the mystery child. Her whole life is turned upside down. And then her husband reveals a secret of his own. Tessa isn’t sure what to believe or who to trust. Because someone is lying. To find out who, she must confront her painful past. But is the truth more dangerous than Tessa realises?

Susie did something that she knows she will always regret: giving her baby son up for adoption, to keep her infidelity secret from her family. Louise, Susie's daughter, feels the effects of that decision echoing down through the years - her mother has always been difficult, too strict with her but not strict enough with her sister, Grace, who is wild and out of control. And Danny, Susie's husband, adores her but has always sensed something wrong at the heart of their marriage.

My brother was 13 the first time he tried to kill me. These days, Della is a loving wife, a dedicated teacher, a woman trying to do her best. She has put her past far behind her. But she hasn’t forgotten the lessons she learned. It’s just a regular morning when Della welcomes Zoey to her English class. She treats her like any other new student: assigns her a desk, hands out the work. But then she meets Zoey’s cold, calculating eyes and freezes as terrifying memories threaten to overwhelm her. 

Cassie stares at the woman on her doorstep in disbelief. Just months after losing her only son, Josh, here stands a stranger claiming to be Josh’s girlfriend. But it’s not only the woman Cassie is shocked by, it’s the baby nestled in Kim’s arms. Cassie’s grandchild. I know what you did. As Cassie tries to do what’s best for baby Samuel, she starts to receive threatening messages from someone from her past - someone Cassie has been hiding from for a long time.

When Freya Miller is struck by tragedy, losing her husband and her home within a short time, she is burdened with many worries. The main one being where she and her five-year old daughter, Skye, are going to live. A chance meeting with the charismatic Dr Marsden changes all that. He offers the young mother the most amazing opportunity: an apartment at one of London’s most exclusive addresses for a fraction of the market rental cost. It’s an offer Freya simply can’t refuse.

Ava only left her daughter in the pushchair for five minutes. The buckle was fastened, and she was sure it was safe. But when she came downstairs, the door was open and Abi was gone - she walked down the road, past the Lovegoods' house, and was never seen again. A year later, the Lovegoods throw a housewarming party, showing off the results of their renovation. Ava doesn’t want to go. She can’t bear to look down that end of the road, to see the place where Abi vanished, and she doesn’t want to spend time with people who don’t share her grief. 

One evening as the sun is setting, Amelia Madison’s car slides into the sea off Mason’s Pier. Her body is never found. Two years later, Elena Langdon meets Nicholas Madison. She is grieving the loss of her mother, he is grieving for his wife. Together, they can help each other. Now, Elena is living with Nicholas. But Elena doesn’t really know him. She doesn’t know what he is capable of. And she doesn’t know what really happened to Amelia. Until the day she discovers the torn page of a letter and the words she reads chill her to the bone.