It's a night just like any other in the Conister home - but then Paul heads upstairs and never comes back. When his wife, Maggie, goes to see where he is, she can't find him. His phone and wallet are by the bed. The windows are locked from the inside. Paul has vanished. Missing persons investigator David Raker is an expert in locating the lost. So when he's hired by Maggie, he knows that in every disappearance - however impossible it seems - there's an answer. What he doesn't know yet is that his search for Paul Conister will become linked to three other mysteries.

Tom Thorne has it all. In Nicola Tanner and Phil Hendricks, Thorne has good friends by his side. He finally has a love life worth a damn and is happy in the job to which he has devoted his life. He has everything to lose. Hunting the woman responsible for a series of grisly murders, Thorne has no way of knowing that he will be plunged into a nightmare from which he may never wake. And he'll do anything to keep it. Finally, Thorne's past has caught up with him and a ruinous secret is about to be revealed. If he wants to save himself and his friends, he must do the unthinkable.

A silent killer stalks the city, targeting those home alone at night—killing without pity or remorse. As panic spreads, Detective Inspector Helen Grace leads the investigation, but is herself a hunted woman, her every step dogged by a ruthless killer bent on revenge. As she tracks the murderer, Grace begins to suspect there is a truly shocking home truth that connects these brutal crimes.

Exhausted single mother Rebekah Murphy leaves her daughters with a friend in the city to accompany her brother on a work assignment on a picturesque island. An hour after arriving, her and her brother are attacked. He vanishes, she's left for dead and, by the time she makes it back to safety, it's already too late: the island has closed for the season - and it'll be seven months before anyone returns. But even with her brother missing, even with no boats, phones or people, Rebekah will soon realise that finding a way back to the mainland is only the start of her nightmare.

Longbill Beach, 1982. Emily Vaughn gets ready for prom night, the highlight of any high school experience. But Emily has a secret. And by the end of the evening, she will be dead. Forty years later, Emily’s murder remains unsolved. Her friends closed ranks, her family retreated inwards, the community moved on. But all that’s about to change.

His lakeside holiday homes are a success, and he's generously invited the village to drink champagne with their wealthy new neighbours. This will be the party to end all parties. But not everyone is there to celebrate. By midnight, Rhys will be floating dead in the freezing waters of the lake. The tiny community is her home, so the suspects are her neighbours, friends and family—and Ffion has her own secrets to protect. With a lie uncovered at every turn, soon the question isn't who wanted Rhys dead...but who finally killed him.

In the present, an old fisherman is found dead by the shoreline and a stranger with a mission moves into a shabby Kinloch flat/ Meanwhile, D.C.I. Jim Daley is trying to help Brian Scott stay sober, and the good people of Kinloch are still mourning the death of one of their own. As past and present collide, Daley finds himself face to face with old friends and foes. Memories can only last as long as those who keep them, and ghosts will not be silenced.

The Sandman killings have been solved. Daniel Miller murdered fourteen people before he vanished. His wife, Carrie, now faces trial as his accomplice. The FBI, the District Attorney, the media and everyone in America believe she knew and helped cover up her husband's crimes. Eddie Flynn won't take a case unless his client is innocent. Now, he has to prove to a jury, and the entire world, that Carrie Miller was just another victim of the Sandman. She didn't know her husband's dark side and she had no part in the murders. But so far, Eddie and his team are the only ones who believe her.

Is it worse to lie to your husband or the police? Rikke is deceiving them both. When their upstairs neighbour Jørgen is found dead, she's questioned alongside her husband Åsmund. How can Rikke admit in front of Åsmund that Jørgen and she were having an affair? Or explain to the police the complexity of her feelings for Jørgen? The hint of relief that he's dead. And, as the investigation closes in on the neighbourhood, how long can she conceal the affair from her neighbours, her husband and her teenage daughter?

Twenty years ago, Cyrus Haven's family was murdered and only he and his brother survived. Cyrus because he hid. Elias because he was the killer. Now Elias is being released from a secure psychiatric hospital and Cyrus, a forensic psychologist, must decide if he can forgive the man who destroyed his childhood. As he prepares for the homecoming, Cyrus is called to a crime scene in Nottingham. A man is dead, and his daughter, Maya, is missing. Then a second woman is abducted. The only witness is Evie Cormac, a troubled teenager with a gift for knowing when people are lying.

Five years ago, Olivia Sutherland was wrongfully convicted of plotting to murder. Now she's finally free, Olivia has three goals. Repair her relationship with her daughter. Clear her name. And bring down her husband—the man who framed her. Just how far is she willing to go to get what she wants? And how far will her husband go to stop her? Because his lies run deeper than Olivia could ever have imagined—and this time it’s not her freedom that’s in jeopardy, but her life.

Detective Erika Foster is on a late-night walk near her new house in Blackheath when she stumbles upon the brutal murder of Vicky Clarke, a true-crime podcaster. Erika is assigned to the case and discovers that Vicky had been working on a new podcast episode about a sexual predator who preys on young female students around South London, staking out his victims in their halls of residence before breaking in at the dead of night.

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.

Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?

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.