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?

Alastair Cunningham wakes up in hospital with almost total amnesia. But he knows that something terrible happened in his past, something that haunts him still. A young family friend, Clemence, is called in to help rekindle his memory. Retreating with Alastair to his remote cottage, Clemence finds a peculiar manuscript hidden away from prying eyes. Reading the prologue, she discovers a murder by someone very much like a young Alastair. The victim? Clemence's grandmother, Sophie.

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.

Herbert Molin, a retired police officer, lives alone in a remote cottage in northern Sweden. Two things seem to consume him; his passion for the tango, and an obsession with the "demons" he believes to be pursuing him. Early one morning shots shatter Molin's window- by the time his body is found it is almost unrecognisable. Stefan Lindman is another off-the-job police officer.

Joseph O'Loughlin appears to have the perfect life: a beautiful wife, a loving daughter, and a successful career as a clinical psychologist. But nothing can be taken for granted. Even the most flawless existence is only one loose thread away from unravelling. All it takes is a murdered girl, a troubled young patient - and the biggest lie of his life.

Criminologist Martin Knight lives a gilded life and is a thorn in the side of the police. But then his wife, Liz, goes missing. There is no good explanation and no sign of Martin.... To make things worse, Liz is the ex-girlfriend of DCI Craig Gillard who is drawn into the investigation. Is it just a missing person or something worse? And what relevance do the events around the shocking Girl F case, so taken up by Knight, have to do with the present? The truth is darker than you could ever have imagined.

Six years ago, Evie Cormac was discovered, filthy and half starved, hiding in a secret room in the aftermath of a shocking crime. Now approaching adulthood, Evie is damaged and self-destructive and has never revealed her true identity. Forensic psychologist Cyrus Haven, a man haunted by his own past, is investigating the death of champion figure skater Jodie Sheehan. When Cyrus is called upon to assess Evie, she threatens to disrupt the case and destroy his ordered life.

The newspaper refers to her only as Victim 2117 - the 2117th refugee to die in the Mediterranean Sea. But to three people, the victim is so much more, and her death sets off a chain of events that throws Department Q, Copenhagen's cold cases division led by Detective Carl Mørck, into a deeply dangerous - and deeply personal - case: a case that not only reveals dark secrets about the past, but has deadly implications for the future.

One thousand years ago: An Icelandic warrior returns from battle, bearing a ring cut from the right hand of his foe. Seventy years ago: An Oxford professor, working from a secret source, creates the 20th century’s most pervasive legend. The professor’s name? John Ronald Reuel Tolkien. Six hours ago: An expert on Old Icelandic literature, Agnar Haraldsson, is murdered. Everything is connected, but to discover how, Detective Magnus Jonson must venture where the shadows lie….

The first woman had her lungs ripped out. When the same gruesome ritualistic method was used again, it was clear that the same killer was responsible. But there is no precise evidence to link the two cases, except for a tantalising email. Kriminalhauptkommissar Jan Fabel (half-Scottish, half-German) is a man of conscience and imagination. In his desperate attempt to solve the case before more victims are discovered, he gradually uncovers layer upon layer of intrigue.

On Christmas Eve, DCI Mackenzie Jones is called to a shooting at a remote farmhouse. Ralph Mallender believes his father lies dead inside. When three more bodies are discovered, it's clear a festive family gathering has turned into a gruesome tragedy. At first it seems like an open and shut case: a murder suicide committed by Ralph's volatile brother Cameron. Then new evidence makes Mack suspect the man who reported the crime is in fact the perpetrator. But Mack isn't the only one with a stake in the case.

Thomas Brogan is a serial killer. With a trail of bodies in his wake and the police hot on his heels, it seems like Thomas has nowhere left to hide. That is until he breaks into an abandoned house at the end of a terrace on a quiet street. And when he climbs up into the loft, he realises that he can drop down into all the other houses through the shared attic space. 

Sonny's on the run. Sonny is a model prisoner. He listens to the confessions of other inmates, and absolves them of their sins. He's been lied to his whole life. But then one prisoner’s confession changes everything. He knows something about Sonny’s disgraced father. Sonny wants revenge. He needs to break out of prison and make those responsible pay for their crimes. Whatever the cost.

As Detective Dan Lockhart is called to a wealthy London street to investigate Natasha’s death, he’s startled by the similarity to a previous case. Noticing the cable-tie restraints and the tiny scratches on Natasha’s wedding finger, Dan already knows what he will find if he looks in her mouth - the metal ball which choked her to death. Months earlier, Kim Hardy was found in the same position in a run-down hotel across the city - an identical silver ball in her throat. But Kim’s murderer was caught and sent to prison - did they arrest the wrong man?

Tom Bettany is working at a meat processing plant in France when he gets a voicemail telling him that his estranged 26-year-old son is dead. Liam Bettany fell from his London balcony, where he was smoking dope. Now, for the first time since he cut all ties years ago, Bettany returns home, to find out the truth about his son's death. But more than a few people are interested to hear Bettany is back in town. He might have thought he'd left it all behind when he first skipped town, but nobody really just walks away.