When a local man is brutally murdered in his home library, Kate and Nathan are brought in to find the killer. But this was no ordinary library. Filled with books on the occult, it’s clear that they were after something. Something that was not in the library. Something that they’re willing to kill for. With the clock ticking, Kate and Nathan must find the killers or the item they were after, before they kill again. 

 A woman is slaughtered in vicious attack, and left in an abandoned building, handcuffed to a chair. Invited by a former colleague to join a new team in the South of England, DCI Jon Pilgrim takes on the case of the murdered young woman. Partnered with the captivating DS Kate O’Connell, they hunt for the killer. Jon must deal with gang bosses, jealous partners, and come to terms with his own tragic past to find the killer before the death toll rises. But as things escalate, Jon fears the past is about to repeat itself, and tear him apart. 

DI Fred Fairservice has just returned from holiday when he’s confronted with several mysterious deaths; the mutilated dead body of a junkie, the apparent suicide of a housewife, and the murder of a cannibal...But the strangest element of the case is the connection to the deaths of several old men and women who are found with spiders placed in their mouths. Slowly it dawns on Fred that it’s all too familiar and echoes something strange and macabre that happened to him when he was a boy. It can’t be just a coincidence.

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?

Following a devastating encounter with a serial killer, Detective Inspector Freya Bloom is left mentally scarred. After a six-month sabbatical, and with no desire to return to the bustling London streets, she accepts a position in rural Lincolnshire in search of a slower pace of life. But with London behind her, and a new life in the wild fens of Lincolnshire before her, she finds only endless drama in her new team, a tortured romance in her only ally, and crimes so deadly even the steely determination that drove her to success is tested.

Haunted by his inability to track down and save his missing wife, DCI Robert Kett leaves the Metropolitan Police behind and moves to Norwich with his three young children, hoping to heal their broken family. But his newfound peace doesn’t last. Two newspaper delivery girls have gone missing in the city, and the clues point to a serial kidnapper. Kett is dragged into the centre of one of the darkest cases of his career - a case that pits him head-to-head against a horrifying evil.

Becky Morgan's family were the victims of the 'crimes of the decade'. The lone survivor of a ritualistic killing, Becky's been forever haunted by the memories of that night. Twenty years later, with the killer never found, Becky is ready to hunt them down and exact revenge. But the path to find the murderer is a slippery slope, and she finds herself opening up some old wounds that should have been left sealed. Will Becky avenge her family or join them?

Max - an elderly Paris bookstall owner - is abducted at gunpoint. His friend Hugo Marston, head of security at the U.S. embassy, launches a search. His investigation reveals that Max was a Holocaust survivor and later became a Nazi hunter. Is his disappearance somehow tied to his grim history, or even to the mysterious old books he sold? Before long, other booksellers start to disappear, their bodies found floating in the Seine. Then Marston himself becomes a target of the unknown assassins.

When the chief suspect in the notorious "peekaboo cop killer" case blew himself up, almost taking lead investigator DCI  Duncan Bone with him, the psychologically damaged detective thought his days on the force were over. But, when another PC is abducted and murdered in the same deranged peekaboo fashion, Bone is persuaded to return to lead the new investigation.

The murder of a young girl found barefoot in a country park and the re-emergence of shoes from the victims of a serial killer from over 40 years ago. A coincidence or a connection? Will Blake is determined to find out, but as he unearths the past, questions are raised about the original investigations, and it becomes clear that The Wirral has a killer on the loose, once again.

A man is shot dead, and his body is dumped on the moors. His arm is stamped with the Chinese symbol for 'sorry'. There have been five unsolved murders with the same hallmark. The police can’t find any motive or connection between the victims. Bella Richards was close to the murdered man. She lives with her five-year-old son and has begun a new life in the local area. But although clearly grief-stricken, she is not telling the police everything she knows. 

DI Thomas Ridpath was on the up in the Manchester CID: a promising detective who captured a notorious serial killer. But 10 years later, he’s recovering from a serious illness and on the brink of being forced out of the police. Then people start dying, in an uncanny echo of his first case.

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.

When a girl’s body is found strangled, raped, and horrifically mutilated by a boat’s propeller, deep in the heart of the Norfolk Broads, newly arrived Detective Inspector John Tanner is asked to assist with the investigation. At first, all the evidence points to a man who had a multi-million-pound reason to kill her. But when an alibi is produced from an unexpected source, and another body appears at the base of a slipway, Tanner finds himself turning to local girl Detective Constable Jenny Evans for help. 

DI Nathaniel Caslin’s life is a mess. He works the minimum, abuses substances to survive the day and drinks his nights away. A once-promising career is in freefall. Investigating the death of an ex-serviceman in police custody reveals the disappearance of a young family. No-one noticed. No-one seems to care.