Meet DCI Cyril Bennett, a ladies' man with a passion for efficiency. His partner, DS David Owen, is naïve and untidy but keen. Together they make a formidable pair.

When two dead infants are found at a teacher training college, Bennett and Owen are given the case. At the same time, a killer is on the loose staging attacks using sulphur mustard. Bennett and Owen must work together to bring to justice a killer with revenge on his mind.

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.

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?

Rock climbers can't afford to make careless mistakes. But Detective Inspector Nick Dixon's former climbing partner, Jake Fayter, died doing just that. Or so it seems. Dixon suspects foul play, but his only leads are unreliable accounts of something odd happening in Cheddar Gorge seconds before Jake fell.

Crimebusting duo DI Jackman and DS Evans are back, solving another crime that will make your skin crawl. Twenty years ago: a farmer and his wife are cut to pieces by a ruthless serial killer. Now: a woman is viciously stabbed to death in the upmarket kitchen of her beautiful house on the edge of the marshes. Then a man called Daniel Kinder walks into Saltern police station and confesses to the murder. But DI Rowan Jackman and DS Marie Evans of the Fenland Constabulary soon discover that there is a lot more to Daniel than meets the eye.

Detective Chief Inspector Ryan retreats to Holy Island seeking sanctuary when he is forced to take sabbatical leave from his duties as a homicide detective. A few days before Christmas, his peace is shattered, and he is thrust back into the murky world of murder when a young woman is found dead amongst the ancient ruins of the nearby priory. When former local girl Dr. Anna Taylor arrives back on the island as a police consultant, old memories swim to the surface, making her confront her difficult past.

A man stands bewildered on a deserted beach on the Hebridean Isle of Harris. He cannot remember who he is. The only clue to his identity is a folded map of a path named the Coffin Road. He does not know where this search will take him. A detective from Lewis sits aboard a boat, filled with doubt. DS George Gunn knows that a bludgeoned corpse has been discovered on a remote rock 20 miles offshore. He does not know if he has what it takes to uncover how and why.

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.

A family is gunned down in the snow, but one of the children survives. Three years on, that child takes revenge, and the Snow Killer is born. But then, nothing - no further crimes are committed, and the case goes cold. 50 years later, has the urge to kill been reawakened? As murder follows murder, the detective team tasked with solving the crimes struggle with the lack of leads. It’s a race against time and the weather - each time it snows, another person dies.

DCI Kenny Murrain sees, hears and feels things that others do not. It’s a gift but also a curse. When he wakes to the phantom sound of screaming, he knows a murder has been committed, but not where or why. Then a woman’s body is found in a Stockport hotel room. It’s a murder that seems both frenzied and carefully planned, the scene expertly cleansed of any evidence. 

Jackman’s sister-in-law Sarah disappears to London and throws herself into the river. What drove her to this? She was a woman with a seemingly happy home life and two beloved sons. DI Jackman and DI Evans dig into Sarah’s life. And Jackman realises he knew almost nothing about his sister-in-law’s past. Then, they discover a woman in a neighbouring village died in similar circumstances. What is the connection to a convicted murderer whose family are convinced he is innocent? Who is really pulling the strings?

The police face an extraordinary problem. Somebody has started shooting unsuspecting citizens dead as they go about their daily business in the northwest of England. But it is a very specific type of person that the gun man is targeting. Pedophiles. In order to keep the public calm, the police have no alternative but to reveal the killer's motive. And that's when things start to get really tricky for the investigating officers. When the killer is hailed as a hero vigilante by the media, DCI Andrew Miller and his team face the ultimate challenge.

A woman is murdered in an empty house. Within 24 hours there is another horrific murder using the same method. The detectives soon deduce that the victims are random, but the locations are not. The killer looks for the right house - somewhere he won't be disturbed. When a man confesses, it looks like the case is closed, but Detective Stephen Greco is unconvinced. Can he keep control when things get personal?

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. 

A missing child's body is found on the edge of the Peak District. As DCI Kenny Murrain and his team investigate, more attempted child abductions are reported. Murrain's instincts tell him this is a community with secrets, and those secrets have their roots deep in the past. Unexpected connections surface as he uncovers mysteries long buried. A motorcycle accident in the nearby hills. The unexplained death of a local prison governor. And a high-profile child killing two decades before.