DI Gravel and his daughter, Emily, are oblivious to the terrible danger she is in when she accepts a job working for the solicitor Charles Turner. Meanwhile, Gravel is on the hunt for a serial killer. And when Emily becomes the killer’s latest obsession, the murderer will stop at nothing to make his grotesque fantasies reality. But as further bodies are discovered, the killer seeks to befriend DI Gravel and misdirect his investigation. How can you catch a killer who is hiding in plain sight? Can DI Gravel and Emily come away from this case with both their lives intact?

When nineteen-year-old university student Emma goes missing, Detective Inspector Gareth Gravel is called in. But what is a simple missing person case soon turns into something much darker as Gravel’s inquiries lead him to the graves of five young women - each of whom looks just like Emma. With a serial killer on the loose and his latest victim already in his control, can the police find Emma in time? Or will Emma have to save herself?

The Mailer family are oblivious to the terrible danger that enters their lives when seven-year-old Anthony is referred to the child guidance service by the family GP following the breakdown of his parents' marriage. Fifty-eight year old Dr. David Galbraith, a sadistic, predatory paedophile employed as a consultant child psychiatrist, has already murdered one child in the soundproofed cellar below the South Wales Georgian townhouse he shares with his wife and two young daughters. Anthony becomes Galbraith's latest obsession and he will stop at nothing to make his grotesque fantasies reality.

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.

DS Rakesh Siyal is an idealist. Frustrated as an Edinburgh human rights lawyer, he joins the police, determined to solve the problems he sees with the criminal justice system from the inside, rather than out. His first day as a cop sees him sent down to Galashiels in the Scottish Borders, where he’s given a simple task – return a suspect to Glasgow to face justice.

Still grieving from the tragic death of her colleague, DCI Emma Gardner continues to blame herself and is struggling to focus. So, when she is seconded to the wilds of Yorkshire, Emma hopes she’ll be able to get her mind back on the job, doing what she does best - putting killers behind bars. But when she is immediately thrown into another violent murder, Emma has no time to rest. Desperate to get answers and find the killer, Emma needs all the help she can. But her new partner, DI Paul Riddick, has demons and issues of his own.

Detective Lola Harris returns from a miserable solo holiday – an effort to get over her useless ex – only to find herself in charge of a high-stakes investigation. She rushes to a crime scene in the historic Gallowgate neighbourhood. The smell in the basement is thick and sweet, even through Lola’s forensic mask. The old wooden chair and the rope hanging from its arms are stained red. The earth below is saturated with blood. Six candleholders, their lights burned out, lend the scene an air of a completed ritual. And yet there is no sign of a body.

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.

When a body is found on a lonely cliff top path, the angelic face of a murdered teenager lies facing the rising sun. Strangled by the hands of an unknown killer, it falls to DI Tom Janssen and his fledgling team to find out how she came to be there. Destined for a career in medicine, one to rival that of her parents, Holly Bettany’s future was as bright as it had been privileged. Seemingly, all that could threaten this promising teenager’s life was Holly herself.

Five years ago, DCI John Lomond led the search for notorious Glasgow child-killer ‘The Sandman', until personal tragedy forced him off the case. In Lomond's absence, the killer was never found. Now, with nothing but work left in his life, Lomond remains obsessed with the case–despite the nightmares it brings. When a child is abducted in similar Sandman fashion from an affluent Glasgow suburb, Lomond is brought in to find them before it's too late.

Detective Norman is out of retirement and back on the beat in a rainy Welsh seaside town. Llangwelli might be short on sunshine, but it's certainly not short on murders . . . Norman is a bit old-fashioned, but he's also willing to learn from his band of misfit recruits. He's asked to mentor a team of misfits in a sleepy Welsh seaside town. But training has barely begun when a woman's body washes up on the beach at Llangwelli.

A killer stalks the streets of London, murdering the richest people in the capital. Is this the work of a serial killer, or just someone angry with the super rich? Or is there another reason why billionaires are being killed every three days? Detective Inspector Simon Wise, reeling from the death of his partner and harbouring more than a few secrets of his own, is assigned to the case. But the killer leaves no clues as to their identity, only bodies in their wake, and each new death sends Wise's team in startling new directions.

One morning Gwen Thomas takes a short walk with her Siberian husky in the outskirts of the Welsh town she calls home. She is drawn to a desolate area where, some 20 years ago as a teenager, she was brutally attacked and her friend killed. Disorientated by a sudden rush of memories, she has a fall. Later, recovering in hospital, she begins to recollect the events that led up to her friend’s death.

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.

Marcus Gove has been all these things. He’s reached the pinnacle of his art and now it’s time for him to take a protégé. Lovely Lucy is perfect for the role, or she will be. Lucy Williams is just like everyone else. She’s had some success as an artist, not so much success in love, but she’s getting by. But soon she’s going to have to become something else if she wants to be a survivor. Ray Lewis’s career isn’t heading anywhere. But he’s a solid detective and he’s determined to find Lucy no matter what the upper brass throw at him.