A golden summer, and six talented teenagers are looking forward to the brightest of futures—until a daredevil game goes horribly wrong, leaving three strangers dead. 18-year-old Megan takes the blame for the crime, leaving her friends to get on with their lives. In return, they each agree to a 'favour', payable on her release from prison. Twenty years later Megan is free. It is payback time. And her friends start disappearing, one by one . . .

Florence Lovelady's career was made when she convicted coffin-maker Larry Grassbrook of a series of child murders 30 years ago in a small village in Lancashire. Like something out of a nightmare, the victims were buried alive. Florence was able to solve the mystery and get a confession out of Larry before more children were murdered, and he spent the rest of his life in prison. But now, decades later, he's dead, and events from the past start to repeat themselves. When her own son goes missing under similar circumstances, the case not only gets reopened...it gets personal.

Just before dawn in the hills near the Scottish border, a man murders a young woman. At the same time, a hot-air balloon crashes out of the sky. There's just one survivor. She's seen the killer's face - but he's also seen hers. And he won't rest until he's eliminated the only witness to his crime. Alone, scared, trusting no one, she's running to where she feels safe - but it could be the most dangerous place of all....

On an unassuming evening, a stranger sits down at Olive Anderson's dinner table and pretends to be her wife. But as much as the fake wife has her secrets, Olive just might have more.

The remote Antarctic island of South Georgia is about to send off its last boat of the summer - which signifies safety to resident glaciologist Felicity Lloyd. Felicity lives in fear - fear that her ex-husband, Freddie, will find her, even out here. She took a job on this isolated island to hide from him, but now that he's out of prison, having served a term for murder, she knows he won’t give up until he finds her.

Beth and Tom Hardcastle are the envy of their neighbourhood—they have the perfect marriage, the perfect house, the perfect family. When the police knock on their door one evening, Beth panics. Tom should be back from work by now—what if he’s crashed his car? She fears the worst. But the worst is beyond imagining. As the interrogation begins, Beth will find herself questioning everything she believed about her husband.

Four people walked into the dining room that night. One would never leave. Matthew: the perfect husband. Titus: the perfect son. Charlie: the perfect illusion. Rachel: the perfect stranger. Charlie didn’t want her at the book club. Matthew wouldn’t listen. And that’s how Charlie finds himself slumped beside his husband’s body, their son sitting silently at the dinner table, while Rachel calls 999, the bloody knife still gripped in her hand.

Early one morning on the shore of the Thames, DCI Samuel Owusu is called to the scene of a gruesome discovery. When Owusu sends the evidence for examination, he learns the bones are connected to a cold case that left three people dead on the kitchen floor in a Chelsea mansion thirty years ago. Rachel Rimmer has also received a shock—her husband, Michael, has been found dead in the cellar of his house in France. All signs point to an intruder, and the French police need her to come urgently to answer questions about Michael and his past that she very much doesn’t want to answer.

Zoe didn't meet her daughter the way most mothers do. She finds five-year-old Maddie alone and dirty on a countryside road. Frightened for Maddie's safety, she picks her up and takes her back to her father, not knowing what she's about to step into. Because Maddie wasn't just lost; she was there to lure her serial killer dad's new victim. After escaping from the clutches of Maddie's dangerous father, she bonds with the little girl. Only Maddie knows what it was like to be at that house. And when no family members come forward to claim Maddie, Zoe decides to adopt her.

Kit Darling is a maid with a snooping problem. She’s the “invisible girl,” compelled to poke into her wealthy clients’ closely guarded lives. It’s a harmless hobby until Kit sees something she can’t unsee in the home of her brand-new clients: a secret so dark it could destroy the privileged couple expecting their first child. This makes Kit dangerous to the couple. In turn, it makes the couple—who might kill to keep their secret—dangerous to Kit.

After years of avoiding each other, Daisy Darker’s entire family is assembling for Nana’s 80th birthday party in Nana’s crumbling gothic house on a tiny tidal island. Finally back together one last time, when the tide comes in, they will be cut off from the rest of the world for eight hours. The family arrives, each of them harboring secrets. Then at the stroke of midnight, as a storm rages, Nana is found dead. And an hour later, the next family member follows…

Emma can’t sleep. It’s been like this since her big 4-0 started getting closer. Her mother stopped sleeping just before her own fortieth birthday. She went mad and did the unthinkable because of it. Is that what’s happening to Emma?

Owen Mann is charming, privileged, and chronically dissatisfied. Luna Grey is secretive, cautious, and pragmatic. Despite their differences, they form a bond the moment they meet in college. Their names soon become indivisible—Owen and Luna, Luna and Owen—and stay that way even after an unexplained death rocks their social circle.

The white-washed Italian villa is perfect. I thought it might feel odd, living in a stranger’s house for the summer, but as my husband and children swim in the infinity pool, I start to relax. And then, in the back of a wardrobe, I find something that shatters everything.... Sparkling green eyes, square jaw, lopsided smile. A young man with his arm around a beautiful woman. The picture is old and faded, but I’d recognize him anywhere. The man is my husband.

The doorbell rings, just days after my beloved husband’s sudden death. I don’t recognise the woman on our doorstep, with her blonde highlights, a diamond bracelet identical to my own and a bouncing baby boy in her arms. As I show her inside, I notice her eyes grow wide as she takes in our spacious hallway, and the big squashy sofas that we all used to pile on. She glances at the silver-framed family photos and my little daughter hiding behind my skirts. She looks at me, her blue eyes serious. ‘I’m sorry’ she says. ‘I am your husband’s girlfriend. And this is his son.'