She should have been safe. But she never came home. Kath has lived on the same London estate for decades. Lately she’s become friendly with the little girl next door, who is often left alone for hours while her mum is at work. They have a system. When Mina gets home from school to the empty flat, she knocks on the wall three times. Knock, knock, knock. I’m home safe and sound. But one day Mina’s knock doesn’t come. Kath raises the alarm and the police begin the search. Kath was the only person looking out for Mina—now she might be the only one who can bring her home.

Heading home after a conference, the senior leadership of a global corporation relax on their private jet ahead of their Christmas break. But their peace is shattered when they realise their jet isn’t taking them home. Instead, it’s heading east—out over the Atlantic Ocean. And things go from bad to worse when their pilot tells them she is going to crash into the ocean if one of them doesn’t confess to murder.

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.

When Rose’s old friend Elise suddenly arrives on her doorstep having just escaped a controlling marriage, she offers her a place to stay. But Elise wants more than a safe refuge, she wants Rose to help her get her daughter back, so that she can truly start afresh with five-year-old Daisy safely in her arms. Every little girl needs her mother, after all. Ready to insert herself into Elise’s old home, Rose gets a job as a teacher, home-schooling Daisy. But when Rose is asked to take the little girl and bring her to Elise, she gets cold feet. Elise’s behaviour is becoming increasingly erratic.

Two years ago, Sarah’s husband was jailed for her murder; her body was never found. Now, her grieving mother, Claire, spends her sleepless nights running a helpline for vulnerable women. Claire takes many calls, but one caller isn’t like the rest. She isn’t calling for help – she’s calling because she claims to know what happened to Sarah. But when Claire hears the terrifying news that her daughter’s killer has escaped from prison, she realises her nightmare is far from over – and her family are in danger yet again.

When I accepted a job working as a nanny for David and Julie and their young children, I was excited to be making my own way in the world. I bonded with baby Chloe instantly and would have done anything for her. She had David's thick, dark hair and smiling eyes. I fell in love with her and was excited for my future. But when a terrible mistake led to Chloe disappearing, I was instantly blamed. With no evidence, I was let go and I returned home to rebuild my life. Twenty years later and I am still haunted by what happened.

Four students travel to Ravencliffe, an eerie abandoned hotel perched on steep cliffs on the Welsh coast. After a series of unexplained accidents, only three of them leave. The fourth, Leo, disappears, and is never seen again. A decade on, the friends have lost contact. Oscar is fame-hungry, making public appearances and selling his story. Richard sank into alcoholism and is only just recovering. Bex just wants to forget – until one last opportunity to go back offers the chance to find out what really happened to Leo.

Bella has the perfect life with her husband Jack and their two children – until the ex who stalked her years ago is released from prison. Now Bella is convinced he’s back to hurt her, and sees him everywhere – but no one else can see that anything is wrong. With her family away for the weekend, Bella determines to leave the past in the past – but she’s about to discover the danger is closer to home than she ever imagined.

Everyone in town knows Copper Lodge, that designer home with floor-to-ceiling windows that looms over the small red-brick houses on Connelly Close. And the couple who live there, Elizabeth and Lucas Huxley, with their two blonde-haired, cherubic children, are seemingly perfect, plucked right out of a magazine. But meet Heather, the gardener’s daughter, arriving from the coast in her beat-up little car to spend the summer helping to prepare for the most important night of the Huxleys’ lives. Heather grew up in the grounds of this magnificent house, she knows its secrets...

All I ever wanted was to keep my son safe. I married the perfect husband, built the perfect home. I’ve tried to give Finn the life I never had. Everything was going so well. Until now. It’s just small things at first - a punctured tyre, an open gate that I'm sure I locked. But then I see the photograph of two young girls, and a night I’ve tried to forget. I know I have to stop pretending that nothing is happening. I can’t escape the truth. Someone knows my secret. But what do they want from me?

From the outside, it seems Grace has it all. Only she knows about the cracks in her picture-perfect life...and the huge secret behind them. After all, who can she trust? Her brother, Josh, is thousands of miles away, and he and Grace have never been close—he was always their parents’ favourite. Her best friend, Coco, walked away from her years ago; their friendship irreparably fractured by the choices they’ve made. And her husband, Marcus, seems like a different man lately. Grace can’t shake the feeling that he’s hiding something.

Jeff Griffin, a mechanic, and his wife, Sarah, travel from Montana to Manhattan to give their nine-year-old son, Cole, his dream vacation as they secretly face the heart-wrenching turmoil that has them teetering on divorce. In the wake of their heartbreak, a mother and son disappear. While sightseeing near Times Square, Jeff steps into a store to buy batteries for their camera - but upon returning to the street he finds that Sarah and Cole have vanished. Battling his anguish and police suspicions, Jeff fights to rescue them.

When Mary receives a blank diary as a present, she thinks nothing of it. Until she opens the diary, and sees it’s not blank after all.

Her chest tightens, her heart speeding up. The kitchen is chaos. She steps on something hard, and looks down. Toy dinosaurs are scattered everywhere. But her son is nowhere–her baby boy is gone.

Six friends gather. It has been 10 years since the tragedy that tore them apart. A lot can change in a decade.... Childhood bonds are now lifelong secrets. Dear friendships have twisted into deep jealousies. A happy reunion is shattered by a dead body.