Even for the sleazy backwater of Cooper, Nebraska, the multiple murder of an entire family, brutally bludgeoned to death in their beds, is big news. Detective Joe Finch, raw with guilt over his partner’s traumatic shooting during a routine traffic stop, hopes the case will at least focus his mind. But then he discovers that the crime scene is the house he grew up in, and the ghosts of his own tragic childhood come rushing back to confront him.

Jess needs a fresh start. She’s broke and alone, and she’s just left her job under less than ideal circumstances. Her half-brother Ben didn’t sound thrilled when she asked if she could crash with him for a bit, but he didn’t say no, and surely everything will look better from Paris. Only when she shows up – to find a very nice apartment, could Ben really have afforded this? – he’s not there.

A single mother turns up dead at the bottom of the river that runs through town. Earlier in the summer, a vulnerable teenage girl met the same fate. They are not the first women lost to these dark waters, but their deaths disturb the river and its history, dredging up secrets long submerged. Left behind is a lonely 15-year-old girl. Parentless and friendless, she now finds herself in the care of her mother's sister, a fearful stranger who has been dragged back to the place she deliberately ran from - a place to which she vowed she'd never return.

Crimebusting duo DI Jackman and DS Evans are back, solving another crime that will make your skin crawl. Twenty years ago: a farmer and his wife are cut to pieces by a ruthless serial killer. Now: a woman is viciously stabbed to death in the upmarket kitchen of her beautiful house on the edge of the marshes. Then a man called Daniel Kinder walks into Saltern police station and confesses to the murder. But DI Rowan Jackman and DS Marie Evans of the Fenland Constabulary soon discover that there is a lot more to Daniel than meets the eye.

On a cool June morning, Isa Wilde, a resident of the seemingly idyllic coastal village of Salten, is walking her dog along a tidal estuary. Before she can stop him, Isa's dog charges into the water to retrieve what first appears to be a wayward stick - and to her horror, Isa discovers it's not a stick at all...but a human bone. As her three best friends from childhood converge in Salten to comfort a seriously shaken-up Isa, terrifying discoveries are made, and their collective history slowly unravels.

Alison Willetts is unlucky to be alive. She has survived a stroke, deliberately induced by a skilful manipulation of pressure points on the head and neck. She can see, hear and feel and is aware of everything going on around her, but is completely unable to move or communicate. Her condition is called Locked-In Syndrome.

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.

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.

In 1986, Eddie and his friends are on the verge of adolescence, spending their days biking in search of adventure. The chalk men are their secret code, stick figures they draw for one another as hidden messages. But one morning, the friends find a chalk man leading them to the woods. They follow the message, only to find the dead body of a teenage girl. In 2016, Eddie is nursing a drinking problem and trying to forget his past, until one day he gets a letter containing a chalk man — the same one he and his friends saw when they found the body.

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.

Joe never wanted to come back to Arnhill. After the way things ended with his old gang - the betrayal, the suicide - and what happened when his sister went missing, the last thing he wanted to do was return to his hometown. But Joe doesn’t have a choice, not after a chilling email surfaces in his inbox: I know what happened to your sister. It’s happening again....

Police Sergeant William South has a good reason to shy away from murder investigations: He is a murderer himself. A methodical, diligent, and exceptionally bright detective, South is an avid birdwatcher and trusted figure in his small town on the rugged Kentish coast. He also lives with the deeply buried secret that, as a child in Northern Ireland, he may have killed a man. When a fellow birdwatcher is found murdered in his remote home, South's world flips.

When a tourist girl disappears on a vacation island - and the police investigation goes nowhere - 11-year-old local boy Billy Wheatley steps in to help. He’s a little young to play detective, and he can’t tell anyone what he’s up to. But he's kind of a child prodigy, or at least, he thinks he is. Either way, he’s got a very good reason to want the police off his beach. His style of investigation is unlike anything you’ve ever heard of before, but he gets results.

Frieda Klein is a solitary, incisive psychotherapist who spends her sleepless nights walking along the ancient rivers that have been forced underground in modern London. She believes that the world is a messy, uncontrollable place. The abduction of five-year-old Matthew Farraday provokes a national outcry and a desperate police hunt. And when his face is splashed over the newspapers, Frieda cannot ignore the coincidence: one of her patients has been having dreams in which he has a hunger for just such a child.

"You need to kill at least three people, right? So that's what I'll do." When Will jokes about becoming a serial killer, his friends just laugh it off. But Adeline can't help but feel there's something more sinister lurking behind his words. Fifteen years later, Adeline returns to Blythe for a reunion of the old gang - except Will doesn't show up. Reminiscing about old times, they look up the details of his supposed murder spree. But the mood soon changes when they discover two recent deaths that match.

Alison Willetts is unlucky to be alive. She has survived a stroke, deliberately induced by a skilful manipulation of pressure points on the head and neck. She can see, hear and feel and is aware of everything going on around her, but is completely unable to move or communicate. Her condition is called Locked-In Syndrome.

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.

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.

Uttered by the abusive father of a nine-year-old girl, that phrase ended Jack’s career as a police negotiator and has been haunting him ever since. Now that he is a struggling private detective, those words return with a vengeance when he inherits a mansion - and some terrifying information. Apparently Jack’s soul was sold at birth, and a devil will come to claim it on his thirty-third birthday just weeks away. It’s a hard pill to swallow, given that Jack doesn’t believe in hell (heaven, either).

On a quiet summer morning, 17-year-old American exchange student Quinn Perkins stumbles out of the woods near the small French town of St. Roch. She is barefoot, bloodied, and unable to say what has happened to her; Quinn's appearance creates quite a stir, especially since the Blavettes - the French family with whom she's been staying - have mysteriously disappeared. Now the media, and everyone in the idyllic village, are wondering if the American girl had anything to do with her host family's disappearance.

Profoundly deaf since early childhood, Caleb has always lived on the outside - watching and picking up tell-tale signs people hide in a smile, a cough or a kiss. When a childhood friend is murdered, a sense of guilt and a determination to prove his own innocence sends Caleb on a hunt for the killer. But he can’t do it alone....

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.

Six months ago, Charlotte almost lost everything. Now, she’s determined to keep her daughter, Elle, safe. So when local girls close to Elle in age and appearance begin to go missing, it’s her worst nightmare. Charlotte’s fears are confirmed when a frantic search becomes a shocking murder investigation. The girls’ bodies have been found - half-buried, and with traces of mud and wildflowers under their fingernails. As Charlotte’s obsession with keeping her daughter close pushes her marriage to the brink, local DI Madeleine Wood embarks on a gruelling search for the killer.

Dan Starkey is a journalist in Belfast, who shares with his wife, Patricia, an appetite for drinking and dancing. Dan meets Margaret, and things begin to get out of hand - terrifyingly, she is murdered. Before long, Dan is a target himself, racing as fast as he can against time to crack the mystery.

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.

It begins with a phone call that Nora Watts has dreaded for 15 years - since the day she gave her newborn daughter up for adoption. Bonnie has vanished. The police consider her a chronic runaway and aren't looking, leaving her desperate adoptive parents to reach out to her birth mother as a last hope. A biracial product of the foster system, transient, homeless, scarred by a past filled with pain and violence, Nora knows intimately what happens to vulnerable girls on the streets.

Frieda Klein is a solitary, incisive psychotherapist who spends her sleepless nights walking along the ancient rivers that have been forced underground in modern London. She believes that the world is a messy, uncontrollable place. The abduction of five-year-old Matthew Farraday provokes a national outcry and a desperate police hunt. And when his face is splashed over the newspapers, Frieda cannot ignore the coincidence: one of her patients has been having dreams in which he has a hunger for just such a child.

When a body is hauled from the River Tyne, Sarah Tucker heads to Newcastle for a closer look. She identifies the dead woman as Private Detective Zoë Boehm, but putting a name to the corpse only raises further questions. Did Zoë kill herself, or did one of her old cases come back to haunt her? Coincidence is an excuse that soon appears pretty unconvincing. Sarah can’t leave until she’s found the answers to her questions, however dangerous they might turn out to be.

Alex Morrow is not new to the police force - or to crime - but there is nothing familiar about the call she has just received. On a still night in a quiet suburb of Glasgow, Scotland, three armed men have slipped into a house, demanding a man who is not, and has never been, inside the front door. In the confusion that ensues, one family member is shot and another kidnapped, the assailants demanding an impossible ransom. Is this the amateur crime gone horribly wrong that it seems, or something much more unexpected?

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.