Margot Lewis is a teacher at an exclusive high school in the English university town of Cambridge. In her spare time, she writes an advice column, "Dear Amy", for the local newspaper. When one of Margot's students, 15-year-old Katie, disappears, the school and the town fear the worst. And then Margot gets a "Dear Amy" letter unlike any of the ones she's received before. It's a desperate plea for rescue from a girl who says she is being held captive and in terrible danger - a girl called Bethan Avery, who was abducted from the local area 20 years ago and never found.

Dear Elizabeth, I've been watching you. I hope to see you...soon. Liz Cafferky is on the up. Rescued from her dark past by the owner of a drop-in centre for older men, Liz soon finds herself as the charity's face - and the unwilling darling of the Dublin media. Amidst her claustrophobic fame, Liz barely notices a letter from a new fan. But then one of the centre's clients is brutally murdered, and Elizabeth receives another, more sinister note. Running from her own ghosts, Liz is too scared to go to the police.

Robin Ballantyne's life is finally coming together. After learning she was pregnant with twins and being abandoned by her irresponsible boyfriend, Adam, she's settling into life as a single mother. But one night, after putting the children to bed, she hears an argument and suddenly, a body falls past her window. Running outside, she finds the body of Paula Carmichael, a renowned activist.

Dear Carys, Zoe and Andrea. Come and join me for my 40th birthday adventure weekend, full of mysteries and surprises the like of which you can't imagine. When Joanne's friends reluctantly accept an invitation to her birthday party, it quickly becomes clear that there is more to this weekend than they are expecting. One of them is hiding a secret. And Joanne is planning to reveal it.... A weekend away in a cottage in the woods sounds like fun - until no one can hear your cries for help.

Helen has had to leave everything she's ever known behind: her home, her family, even her own name. Now, returning to the UK as Ellen Newman, she moves to a small coastal village, working as a nanny for Donovan, a criminal psychologist. Attractive, caring and protective, this single father and his sweet daughter are a world away from Ellen's brutal past. But Ellen can't shake the feeling that something's wrong.

The ugly truth. Nicholas Dismas is a Private Investigator, but like no other that has gone before him. He carries a secret to which not even he has the answer. Dismas is hired to find a missing baby. One that was taken away at birth... Or was it? His investigation takes him to a mysteriously located place called Perfect Rest, a nursing home for the elderly. Here Dismas will discover the dark secret of the Others. And in an astonishing and spectacular finale he will resolve the enigma of his own existence.

Claudia Morgan-Brown finally has it all. Pregnant with a much-wanted first baby of her own, she has a happily established family of two small step-sons and a loving husband with a great career. But she is also committed to her full-time job as a social worker, and her husband travels often. So when Claudia hires Zoe to help her around the house in anticipation of the baby’s arrival, it seems like the answer to her prayers.

On a fateful summer morning in 1986, two 11-year-old girls meet for the first time. By the end of the day, they will both be charged with murder. Twenty-five years later, journalist Kirsty Lindsay is reporting on a series of sickening attacks on young female tourists in a seaside vacation town when her investigation leads her to interview carnival cleaner Amber Gordon. For Kirsty and Amber, it's the first time they've seen each other since that dark day so many years ago.

A week's holiday in a luxurious hotel is just what Scotland Yard's Superintendent Duncan Kincaid needs. But his vacation ends dramatically with the discovery of a dead body in the whirlpool bath. Despite a suspicious lack of cooperation from the local constabulary, Kincaid's keen sense of duty won't allow him to ignore the heinous crime, impelling him to send for his enthusiastic young assistant, Sergeant Gemma James. But the stakes are raised significantly when a second murder occurs....

When Lizzie’s car crashes with her two daughters inside, she faces a terrible choice. And when she recovers from her injuries, she must deal with the impact of that tragedy and the police investigation into it. As Lizzie and her family struggle to come to terms with the events of that night, things take an even darker turn. What exactly happened on that remote country road? Who is responsible? And can the family get through this together…or will the truth finally tear them apart?

Time's up. You're Next. "All he had to do was name the woman he wanted. It was that easy. They would do all the hard work. "Detective Sergeant Mark 'Heck' Heckenburg is investigating the disappearance of 38 different women. Each one was happy and successful until they vanished without a trace. Desperate to find her missing sister, Lauren Wraxford seeks out Heck's help.

Nina Borg, a Red Cross nurse, wife, and mother of two, is trying to live a quiet life. The last thing her husband wants is for her to go running off on another dangerous mission to help illegal refugees. But when Nina's estranged friend, Karin, leaves her a key to a public locker in the Copenhagen train station, and begs her to take care of its contents, Nina gets suckered into her most dangerous case yet.

She’ll never forget...I’ll never forgive. People always notice my daughter, Isobel. How could they not? Incredibly beautiful...until she speaks. An unsettling little-girl voice, exactly like a child’s, but from the mouth of a full-grown woman. Izzie might look grown up, but inside she’s trapped. Caught in the day it happened...the day that broke her from within. Our family fell apart that day, and we never could pick up the pieces....

When a house explodes in a quiet Oxford suburb and a young girl disappears in the aftermath, Sarah Tucker becomes obsessed with finding her. Accustomed to dull chores in a childless household and hosting her husband’s wearisome business clients for dinner, Sarah suddenly finds herself questioning everything she thought she knew, as her investigation reveals that people long believed dead are still among the living, while the living are fast joining the dead.

When Victor Holland came flying out of the night, he ran straight into the path of Catherine Weaver's car. Having uncovered a terrifying secret that leads all the way to Washington, Victor is running for his life - and from the men who will go to any lengths to silence him. Though Victor's story sounds like the ravings of a mad-man, the haunted look in his eyes - and the bullet hole in his shoulder - tell Cathy a different story.