Paige, Richard and me. We thought we’d be friends forever. But everything changed the day we took the shortcut home from school along the old railway line. I wish we’d gone the long way. I wish we hadn’t seen our classmate, pale and still in the undergrowth. And I wish we hadn’t promised to keep one, awful detail a secret just between us.... 

I wrap my arms around the tree trunk, pressing my cheek against it until the bark digs in and the missing poster is finally secured. I try not to look at the photograph on it. At the features so similar to mine. Perhaps this will be the year someone comes forward. Were crucial mistakes made by detectives from the very beginning? Could the pressure of living two lives have led my sister to run away - or even end it? Or did someone in her tight circle of friends and family have reason to want her gone? Someone out there must know something. 

It should be like any other holiday. Beautiful beaches. Golden sunsets. Nothing for miles. You’ll never want to leave. Until you can’t.... 

An imposing, isolated hotel, high up in the Swiss Alps, is the last place Elin Warner wants to be. But she's taken time off from her job as a detective, so when she receives an invitation out of the blue to celebrate her estranged brother's recent engagement she has no choice but to accept. Arriving in the midst of a threatening storm, Elin immediately feels on edge. Though it's beautiful, something about the hotel, recently converted from an abandoned sanatorium, makes her nervous - as does her brother, Isaac.

The perfect husband...After a difficult pregnancy, Esther is grateful that her forward-thinking husband, Robin, offers to put his career on hold so that she can return to the job she loves. The perfect father...Robin flourishes in his new role of stay-at-home parent, but Esther finds leaving her daughter behind to go to work more challenging than she'd thought, and soon the imbalance in their relationship brings old tensions to the surface. A perfect lie? Then one day Esther arrives home from work to find Robin and Riley are missing. 

Orly, Lenny, Mel and Thea have been best friends since school. But now it is 20 years later and inevitably they have drifted apart. It is Lenny's 40th birthday, plus Orly and Mel need cheered up, so Thea suggests a weekend away at a festival in their hometown. It's a chance for them all to reconnect. But their holiday soon takes a sinister turn, and not all of the friends will leave the festival alive....   

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. 

It was supposed to be the trip of a lifetime, a final adventure before settling down. But after a perfect start, an encounter with a young couple on a night train forces Daniel and Laura to cut their dream trip short and flee home. Back in London, Daniel and Laura vow never to talk about what happened that night.

Gloria is used to solitude. Widowed and still grieving her late husband, she spends her days with only her faded photographs for company. But when a young woman is murdered nearby, Gloria grows anxious. Living alone in old farmhouse, surrounded by empty woods, there’s no one for miles who would hear her scream. When freelance travel writer Beth arrives with her trailer to live on Gloria’s land, Gloria is relieved not to be alone. The police have no suspects in the murder, and fearless Beth makes Gloria feel safe. 

Stephanie and Patrick are recently married, with newborn twins. While Stephanie struggles with the disorienting effects of sleep deprivation, there’s one thing she knows for certain - she has everything she ever wanted. Then a woman from his past arrives and makes a shocking accusation about his first wife. He always claimed her death was an accident - but she says it was murder. He insists he’s innocent, that this is nothing but a blackmail attempt. But is Patrick telling the truth? Or has Stephanie made a terrible mistake?

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....

One hot summer night, 15-year-old Olivia comes home late from a party she was strictly forbidden from going to, and she and her mother, Hannah, start arguing. Soon Olivia speaks the words that every parent has heard from their teenage child.

You've lost your daughter. She's addicted to drugs and to an abusive boyfriend. And she's made it clear that she doesn't want to be found. Then, quite by chance, you see her busking in New York's Central Park. But she's not the girl you remember. This woman is wasted, frightened and clearly in trouble. You don't stop to think. You approach her, beg her to come home. She runs. And you follow her into a dark and dangerous world you never knew existed. Where criminal gangs rule, where drugs are the main currency and murder is commonplace. Now it's your life on the line.

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?

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.