When DS Royston Chase is called to the scene of a fatal road collision, his task is to identify the girl who died alongside the ex-chief constable of Wiltshire Police. Paired with the bold and strident DC Claire Laney, Chase is given the task of closing the case quickly and quietly. But when the girl’s DNA provides a familial link to a child who vanished from her home 20 years earlier, Chase and Laney refuse to accept the coincidence. The pair start looking harder at the ex-cop’s life, at which point they encounter serious opposition. Perhaps deadly serious.

I only try on one of Nina’s pristine white dresses once. Just to see what it’s like. But she soon finds out...and by the time I realize my attic bedroom door only locks from the outside, it’s far too late. But I reassure myself: The Winchesters don’t know who I really am. They don’t know what I’m capable of....

Molly lives a quiet, contained life in London. Naturally risk averse, she gains comfort from security and structure. Every day the same. Her identical twin, Katie, is her exact opposite: gregarious and spontaneous. They used to be inseparable, until Katie moved to New York a year ago. Molly still speaks to her daily without fail. But when Molly learns that Katie has died suddenly in New York, she is thrown into unfamiliar territory. Katie is part of her DNA. As terrifying as it is, she must go there and find out what happened.

It's every parent's nightmare. Your happy, funny, innocent son commits a terrible crime: murdering a complete stranger. You don't know who. You don't know why. You only know your teenage boy is in custody and his future lost. That night you fall asleep in despair. Until you wake...and it is yesterday. Every morning you wake up a day earlier, another day before the murder. Another chance to stop it. Somewhere in the past lie the answers, and you don't have a choice but to find them.

A serial killer is burning people alive in the Lake District's prehistoric stone circles. He leaves no clues, and the police are helpless. When his name is found carved into the charred remains of the third victim, disgraced detective Washington Poe is brought back from suspension and into an investigation he wants no part of. He is reluctantly partnered with brilliant but socially awkward civilian analyst Tilly Bradshaw, and the mismatched pair uncover a trail that only he is meant to see. The elusive killer has a plan, and for some reason Poe is part of it.

A sinking boat is spotted off the South Coast. Waiting onboard is a grisly discovery. DCI Boyd, recently relocated from London to Hastings, is now with the East Sussex CID, and his first case is that of a local businessman and his new young wife, missing in the English Channel. All that remains of them is a grim scene aboard their half-submerged yacht and a digital trail of clues that could put Boyd and his daughter, Emma, in danger. 

Two men are found dead in London's Battersea Park. One of the bodies has been laid out like a crucifix—with his eyes removed and placed on his open palms. Detective Inspector Grace Archer and her caustic DS, Harry Quinn, lead the investigation. But when more bodies turn up in a similar fashion, they find themselves in a race against time to find the sadistic killer.

Mark Campbell is in trouble. His latest book is five years late and his recent divorce has cleaned him out. Worse, his debts with Vic Hebden aren’t the kind you consolidate into one easy payment. And he’s already missed three. But Mark has a plan—finish his novel, then pay Hebden off with the advance. His daughter, Kay, is spending her summer holiday in the far north of Scotland. The hotel calls—Kay has run off, leaving a big bill, her phone, and a copy of Mark’s last book, Break the Chain. There's only one person to turn to—his ex, Olivia. Kay’s stepmother.

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.

A family is gunned down in the snow, but one of the children survives. Three years on, that child takes revenge, and the Snow Killer is born. But then, nothing - no further crimes are committed, and the case goes cold. 50 years later, has the urge to kill been reawakened? As murder follows murder, the detective team tasked with solving the crimes struggle with the lack of leads. It’s a race against time and the weather - each time it snows, another person dies.

It's a crisp spring morning when Cass drops her husband, a respected lecturer, to the beach for his medically prescribed swim. While waiting for him, something catches her eye. A young woman runs towards her husband and embraces him—until he holds his hand over her face and she falls down on the stones, dead. In the backseat of the car, their seven-year-old son sits quietly. When her husband returns, he says nothing. Neither does Cass. Afraid to speak up in the immediate aftermath, Cass embarks on a solitary quest to unravel what has taken place.

A young woman is brutally attacked on her way home. It looks like she was the victim of a jilted—and twisted—ex-lover. But then two more women, also engaged to be married, are found dead. The press call the killer the "Surrey Stalker". And there’s a stack of similar cold case files. The pressure is on for young, ambitious DI Rob Miller. But with all the time he’s spending at the office, Rob’s also running a fine line trying to keep his fiancée, Yvette, onside as they try to plan their wedding.

Five figures gather 'round a shallow grave. They had all taken turns to dig. An adult-sized hole would have taken longer. An innocent life had been taken, but the pact had been made. Their secrets would be buried, bound in blood. Years later a headmistress is found brutally strangled, the first in a spate of gruesome murders that shock the Black Country.

A skeletal body is unearthed in a wooded area of Peterborough, Cambridgeshire. DI James Bliss, together with DC Penny Chandler, investigates the case and discovers that the young female victim had been relocated from her original burial site. A witness is convinced that a young female was struck by a vehicle back in the summer of 1990 and that police attended the scene. However, no record exists of either the accident or the reported victim. As the case develops, two retired police officers are murdered. 

Surrounded by the Blackwater estuary, The Stanhope hotel sits on a beautiful remote island. Tonight is the grand reopening, and organiser Hannah watches the guests with pride. But as drinking descends into debauchery, drunken revellers wade into the water, unaware of the treacherous tide at The Drowning Hour. They are never seen again. Tormented by a terror of water, Hannah is stuck on the island over winter. Whispers about 'That Night' begin to circle. Someone knows what really happened in The Drowning Hour—and Hannah isn’t safe.