As Acting DC Scott Cullen works with DC Craig Hunter to track down a witness who didn’t show during a court case, they stumble upon another crime–two homeless women, dying of a suspected heroin overdose. As they investigate, they uncover a far-reaching criminal empire, dealing death and misery to Edinburgh’s underclass. And come across another investigative team who may not be exactly on the same side. As the case brings two cops together and drives a wedge between another pair, can Cullen and Hunter rescue the witness and bring her assailant to justice?

DCI Kelso Strang is led to believe that something very odd is going on around the prosperous fishing port of Tarleton on Scotland’s south-east coast. Firstly, a young Detective Inspector is traumatised after witnessing a doctor throwing herself off a cliff, and accusations of extortion have riven the local community. And when the ugly death of a young farmer sets off a murder investigation, Strang finds himself caught in a spider’s web of criminality.

D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

When two bodies are found sprawled at the bottom of the Devil's Kitchen in the mountains of Snowdonia, it looks like a murder-suicide. But something doesn't feel right to Detective Inspector Ian Drake, and his gut instinct has never let him down before. Drake suspects at least one of the deaths could be suspicious, but who would kill such an ordinary couple, and why? This might be Drake's first murder inquiry, but his years as a detective have taught him one thing - every murder has a motive, and every killer leaves a trace.

A brutal double murder on a Norfolk beach horrifies the town of Cromer. The way the victims died is chilling and so Norfolk’s Major Investigation Team task DS Ashley Knight to manage the case. It soon becomes clear that the murders were carefully planned and the finger of suspicion points to an organised crime gang, but as the evidence mounts, a far more sinister theory emerges.

Fresh out of uniform, DC Jimmy Bliss finds himself at the centre of an undercover sting. Enlisted by a crew of villains to crack a safe, he fears his cover is blown when he’s seen in the wrong place at the wrong time. But on the night of the job, things run smoothly enough until the gang leader changes the location of the heist. As the job spirals out of control, Bliss has to trust his instincts and buy some time. There’s just one problem: he has no idea if his team know what has become of him.

The disappearance of a three-year-old girl from her isolated Highland home one summer shook the nation. A massive police search involving divers in the loch and dogs combing the moorland and mountains had failed to find Lily Masterton. Three years later, the world may have forgotten the blond-haired girl with the big blue eyes, but her grief-stricken parents hire Private Investigator Teàrlach Paterson—an expert in finding missing children—to bring their precious Lily home. But this is no ordinary family struck by tragedy.

When a landslip on Pembrokeshire’s stunning coastal path reveals the harrowing remains of two bodies, ex-DCI Evan Warlow’s quiet retirement is shattered.

In the Scottish Highlands where secrets settle like mist in the glens, Detective Inspector James Corstorphine is summoned to a macabre scene–a gamekeeper hanging from an ancient oak, ensnared by an intricate trap of wire and bone. Still grieving his wife's death, Corstorphine finds himself hunting a killer who crafts elaborate deathtraps from human remains–clockwork mechanisms that deliver murder with chilling precision.

When the chief suspect in the notorious Peek-a-boo 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 Peek-a-boo fashion, Bone is persuaded to return to lead the new investigation. But as Bone and his team hunt a copycat killer, and with time running out before yet another cop is slain, Bone’s terrifying past returns to tear open old wounds and push him to very edge of the abyss.

In this prequel to the international best seller The Ruin, set 10 years prior, bright-eyed Carrie Ryan is at the very start of her career. When she has a hunch about an ongoing murder investigation, she knows it could be her only chance to prove herself and truly break into the “boys' club” of Dublin’s police force.

DI Jan Talantire is called to a cottage in Ilfracombe, where the female occupant is found dead, impaled with a crucifix. The woman, who had been renting the house for a few months, is well known locally, but the documents at the house indicate her real name is Ruth Lyle. The name means nothing to the young PC who found her, DI Talantire knows this cannot be the body of Ruth Lyle.

When the body of a local artist is found mutilated inside a five-pointed star, DCI Tanner’s attention turns to the disciples of a Satanic cult. But when the man's body is discovered to be the cult’s leader, Tanner's interest is soon drawn to his will, and the five beneficiaries who’ve been named in it.

A mutilated body is found dumped at Cowane's Hospital in the heart of historic Stirling. For DCI Malcolm Ford it's like nothing he's ever seen before, the savagery of the crime making him want to catch the murderer before he strikes again. For reporter Donna Blake it's a shot at the big time, a chance to get her career back on track and prove all the doubters wrong. But for close protection specialist Connor Fraser it's merely a grisly distraction from the day job.

Former detective sergeant Norman Norman’s retirement is boring him to tears. So when he’s asked to assist an upcoming female DI and mentor a new team of misfits in a sleepy Welsh coastal town, he jumps at the opportunity. But the training has barely begun when a woman’s corpse washes up on the sand. With no reports of missing persons, DS Norman is stumped...until the post-mortem reveals a shocking hint to the culprit being local. But with a growing list of suspects who all have alibis, the experienced cop and his fledgling team’s first case could be their last.