In a city that is already volatile, tensions mount after a Tory MP in Bradford Central is discredited leaving the door open for the extreme right-wing candidate, Graeme Weston, to stand in the resultant by-election. However, Graeme Weston is not what he appears to be, and with secrets jeopardising his political career, he must tread very carefully. Meanwhile, a serial killer targets Asian men who lead alternatives lifestyles and delivers his own form of torture.

When human remains are discovered under Bradford’s derelict Odeon car park, DS Nikita Parekh and her team are immediately called to the scene. Distracted by keeping her young nephew out of trouble, Nikki is relieved when the investigation is transferred to the Cold Case Unit, and she can finally focus on her family. But after the identity of the victim is revealed, she’s soon drawn back into the case. The dead man is a direct link to her painful past. As the body count begins to rise, Nikki must do everything she can to stop the killer in their tracks before anyone else gets hurt.

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?

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.

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. 

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.

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.

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.

After an incident makes remaining in Glasgow impossible, Police Sergeant Don Colyear is sent to work in a remote Highlands town. His new Inspector wants him gone and the locals wonder why he’s even there. Still, Don makes a go of things, striking up a good working relationship with rookie officer Rowan Forbes. As Don starts to investigate petty crimes, it soon becomes clear that there is something off about the town. A string of teenage disappearances has not been given due attention. 

When the bonds of brotherhood are strained, who do you turn to? The celebration of the Viking Festival of Scira ensures that thousands descend annually on the small coastal town of Sheringham, but when one man dies amidst the grand finale, it falls to DI Tom Janssen and his team to identify who the victim was and how he met such a grisly end. The victim was a local man, successful, hard working, and well respected. A motive proves to be elusive. As the case progresses it becomes evident that not all is at it seems.

Ex-priest DI Frank Farrell has returned to his roots in Dumfries, only to be landed with a disturbing murder case. Even worse, Farrell knows the victim: Father Boyd, the man who forced him out of the priesthood 18 years earlier. With no leads, Farrell must delve into the old priest’s past, one that is inexorably linked with his own. But his attention is diverted when a pair of twin boys go missing. The Dumfries police force recover one in an abandoned church, unharmed. But where is his brother?

Ronald Potter is found dead on the kitchen floor of a house he was about to show a client around. Ronald led a blameless life, and Detective Matt Brindle and the team cannot find any motive for his murder. But an intensive search of the property leads to a very disturbing discovery in the cellar. Meanwhile, a young mother is being held captive by someone who will stop at nothing to get the information they want. DI Matt Brindle discovers connections to organised crime and a sleazy nightclub. Can he expose the villains before any more people die?

Meet DCI Lesley Clarke. She’s a straight-talking city copper who doesn’t suffer fools gladly…and she’s been transferred to rural Dorset. After being injured in a bomb attack, Lesley is presented with a choice - early retirement, or a period of respite in a calmer location. But things don’t stay calm for long. Before she’s even started her new job, Lesley is dragged into investigating a murder at one of England’s most iconic landmarks, the imposing Corfe Castle.

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.

When 12-year-old Paul disappears from school, Yorke’s only clue is a pool of animal blood. Fearing the worst, he turns toward the most obvious suspect: recently released local murderer Thomas Ray. But as the snow in Salisbury worsens, Ray’s mutilated body is discovered, and Yorke is left with no choice but to journey into the sinister heart of a demented family that has plagued the community for generations.