The morning after a wedding reception at a beautiful suburban home in Sheffield, the bride’s entire family are stabbed to death—in a frenzied attack more violent than anything DCI Matilda Darke could have imagined. Forensics point to a burglar on the run across the country. But cracks are starting to appear in Matilda’s team, someone is playing games with the evidence—and the killer might be closer to home than they thought.... 

DCI Matilda Darke has returned to work after a nine-month absence. A shadow of her former self, she is tasked with reopening a cold case: the terrifyingly brutal murders of Miranda and Stefan Harkness. The only witness was their 11-year-old son, Jonathan, who was too deeply traumatised to speak a word. Then a dead body is discovered, and the investigation leads back to Matilda's case. Suddenly the past and present converge, and it seems a killer may have come back for more.... 

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.

Police officer Sebastian Clifford never planned on becoming a private investigator. But when a scandal leads to the disbandment of his London based special squad, he finds himself out of a job. That is, until his cousin calls on him to investigate her husband’s high-profile death, and prove that it wasn’t a suicide. Clifford’s reluctant to get involved, but the more he digs, the more evidence he finds. With his ability to remember everything he's ever seen, he's the perfect person to untangle the layers of deceit.

Former soldier. Ex-copper. Current man on the edge. Shunned by his old colleagues, and dividing his time between a dead-end job and the bottom of a whisky bottle, former Police Scotland detective superintendent Bob Hoon’s life is a mess. Then an old face from Hoon’s Special Forces days turns up asking for help: His teenage daughter has been missing for months, the police have drawn a blank, and he needs the kind of help that only Hoon can provide. And besides, Hoon owes him one.

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?

Detective Chief Inspector Harry Grimm is forced to take leave from Bristol’s Major Investigations Team when his boss, tired of Harry chasing the ghost of his murderous father, sends him north on secondment. Used to city life and high stress, Harry fears his life will now be spent handing out speeding tickets, finding lost sheep, and directing tourists. But when a local teenager runs away, Harry finds himself pulled into an investigation much worse than anyone could have ever expected. 

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.

Edinburgh is gripped by the greatest terror it has ever known. A lone bomber is targeting victims across the city, and no one is safe. DCI Ava Turner and DI Luc Callanach face death every day - and not just the deaths of the people being taken hostage by the killer. When it becomes clear that with every tip-off they are walking into a trap designed to kill them, too, Ava and Luc know that finding the truth could mean paying the ultimate price.

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.

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.

DI Nikki Galena: A police detective with nothing left to lose, she's seen a girl die in her arms, and her daughter will never leave the hospital again. She's gotten tough on the criminals she believes did this to her. Too tough. And now she's been given one final warning: make it work with her new sergeant, DS Joseph Easter, or she's out.

DCI Michael Lambert thought he’d closed his last case.... Yet when he’s passed a file detailing a particularly gruesome murder, Michael knows that this is no ordinary killer at work. The removal of the victim’s eyes and the Latin inscription carved into the chest is the chilling calling card of the ‘soul jacker’: a cold-blooded murderer who struck close to Michael once before, 25 years ago. Now the long-buried case is being reopened, and Michael is determined to use his inside knowledge to finally bring the killer to justice. 

The head of Scotland’s most powerful crime family is brutally murdered, his body dumped inside an ancient grave in a remote cemetery. Detectives Max Craigie and Janie Calder arrive at the scene, a small town where everyone has secrets to hide. They soon realise this murder is part of a blood feud between two Scottish families that stretches back to the 1800s. One thing’s for certain: it might be the latest killing, but it won’t be the last.

When the danger is already inside, nowhere is safe… Highton prison sits nestled within the moors of western Cumbria, close to the coastal road. When two former inmates turn up dead, DI Kelly Porter is tasked with finding out why. It soon becomes obvious that she is hunting for one killer and the place where both victims were incarcerated holds the key. As Kelly delves into life at Highton she finds more questions than answers. A web of corruption and deceit emerges within the prison walls.