New Year’s Eve, 2023. When Hannah and her friends rent a luxury yacht in an Italian marina, they party in style under the stars until they pass out. The next morning, they are horrified to find they have been cut adrift into the open ocean, with no sight of land and no fuel in the engine. And that’s when the first person goes missing.

I can’t trust anything Cain says. Desperate for answers, I agree to meet Charlotte in secret. But it’s Charlotte who is full of questions: about our lives, our relationship. It’s only when she lets slip the name of the road I used to live on, that I realize how much she knows about me, too. Cold fear floods through my body. My husband may not have told the truth, but his lies are nothing compared to mine. If Charlotte knows my darkest secret, my whole life could fall apart. How far will I have to go to keep the truth hidden?

A group of strangers arrive on a beautiful but remote island, ready for the challenge of a lifetime: to live there for one year, without contact with the outside world. But 12 months later, on the day when the boat is due to return for them, no one arrives. Eight people stepped foot on the island. How many will make it off alive?

Mark Burcham and his wife Amy live the perfect life: they have a happy marriage, a comfortable home in Los Angeles and a beautiful daughter, Tatum. But one night Amy fails to come home from a business trip to Boston, and her office have no record of a client on the east coast. Then Mark gets the worst news of all; Amy has been found dead. But nothing makes sense. Why was Amy still in town, when he’d waved her off at the airport a few days before? Who was the mysterious client she’d been meeting with for months? There’s only one thing Mark knows for certain: his wife was keeping secrets.

Everyone thinks I’m living the perfect life. I have my dream job, a stunning apartment, and glamourous friends – who know nothing about my dark past. So I’m shocked when I run into Anna, who I haven’t seen in eighteen years. Everything about her reminds me of the life I’ve left behind. But as her eyes fill with tears and she tells me she’s lost her job and can’t pay her rent, I reluctantly offer her my spare room.

Single mum Ellie is shown a missing person post on Facebook. It’s of her three-year-old son, Tyler. But he’s right there, holding her hand. Surely this is some kind of prank – she knows her friend Louise can go too far with her jokes sometimes. And Ellie is used to the other mums gossiping at the school gates. But now the other parents are questioning whether Tyler is really her child. Ellie does everything she can to prove the post is fake, but the longer it goes on she knows it is malicious. Who would do this to her? And why?

Kirsten and Nick are enjoying a weekend away until, on their drive home, they accidentally run over and kill a man. They should call for help – but they have too much to lose, and no one can know the real reason they’re here. Instead, they make a split-second decision to conceal the accident. Amy and Greg have just celebrated their tenth wedding anniversary. Amy is expecting a baby, and they couldn’t be happier. So when Greg fails to come home from a dog walk one weekend, Amy knows the police are wrong to believe he left of his own accord.

I’ve lived on this quiet street for years, in the same house I once shared with my husband and our beloved daughter, Chloe. Now they’re both gone and my home, that used to be filled with laughter, is too quiet, too still. When a little boy I don’t recognize knocks at my door, without a parent in sight, I’m shocked. He trembles with nerves, and I tell him I can help find his mother. But I’m not prepared for what he says next. I’m left frozen, heart pounding in my chest.

Two-year-old Abigail is fast asleep in the back of the car, clutching her little red lion. Tony, her father, steps out onto the pavement. The man he’s meeting punches him in the face, knocking him to the ground. Before it all goes black, Tony sees his car speed away—with his little girl inside. When he finally gets home after the worst day of his life, the house is empty. His wife is gone too. The place is ransacked and the kitchen is streaked with blood.

My heart pounds as I take in the headline: ‘Missing girl believed kidnapped’. Underneath is a photo of my beautiful daughter Mia, her gap-toothed grin unmistakable. But Mia is safe beside me, snuggled up on the sofa. Who has taken a photo of her, and put it on the news? And what message are they trying to send me…? I run to the window of our little house–the cosy, homely place my husband Mark and I bought so Mia could have everything I didn’t as a child–and pull the curtains tightly shut, hiding us from sight as terror courses through my body.

I tell myself that Max couldn’t kill anyone. He’s a family man now, different to who he was before. Even so, I should go to the police right away. But I can’t. Because if I do, I’m scared they’ll start to suspect me. How much do I really know about the girl in room 12? And if the truth comes out, how far will I go to protect my precious family?

Last night, we celebrated our anniversary. Over candlelight, we talked about the children, our work, and I was so happy, and felt so loved. But the next morning, when I check my phone, there is a message. From a friend. And a string of photos appear of my husband, Will, with another woman: walking along the street holding hands. Going into fancy hotels. Standing at a window, his arms around her, her head on his shoulder…

Just six hours ago, Alex and I were married. It was a beautiful wedding by the sea, on the beach we’ve always loved. Our guests crowded outside our beach hut to raise a toast before our first midnight swim together as man and wife. And then, suddenly, he was gone, drowning in the water that meant so much to us.

The only people who’ve been inside our house are the ones I thought I could trust. Someone close is watching me, speaking to Olivia and trying to make me look like a bad parent. I don’t care what my husband says. I’m more scared than I’ve ever been in my life, but my precious child means everything to me. They have no idea how far I’ll go to protect my daughter…

When Nigel Baxter, a middle-aged married banker with an unremarkable past, is found dead in the bath of a plush hotel suite, his wrists slit, it looks as if he's taken his own life. At first. But when Detective Inspector Daniel Riley is assigned to the case, he soon realises all isn't as it first appears to be. When a postmortem shows Baxter was poisoned, Riley suspects foul play. And then there's the odd addition of a teddy bear left at the crime scene....