A psychopath is terrorizing Copenhagen. His calling card is a “chestnut man” - a handmade doll made of matchsticks and two chestnuts - which he leaves at each bloody crime scene. Examining the dolls, forensics makes a shocking discovery - a fingerprint belonging to a young girl, a government minister’s daughter who had been kidnapped and murdered a year ago. A tragic coincidence - or something more twisted? To save innocent lives, a pair of detectives must put aside their differences to piece together the Chestnut Man’s gruesome clues.

Twenty-two-year-old Olivia has been missing for one day…and counting. She was last seen on CCTV, entering a dead-end alley. And not coming back out again. Julia, the detective heading up the search for Olivia, thinks she knows what to expect. A desperate family, a ticking clock, and long hours away from her husband and daughter. But she has no idea just how close to home this case is going to get.

Cleo knows she should be happy for her brother Mark. He's managed to find someone new after the sudden death of his first wife - but something about Evie just doesn't feel right.... When Evie starts having accidents at home, her friends grow concerned. Could Mark be causing her injuries? Called out to their cliff-top house one night, Sergeant Stephanie King finds two bodies entangled on blood-drenched sheets.

When Nigel Baxter, a middle-aged married banker with an unremarkable past, is found dead in the bath of a plush hotel suite, his wrists slit, it looks as if he's taken his own life. At first. But when Detective Inspector Daniel Riley is assigned to the case, he soon realises all isn't as it first appears to be. When a postmortem shows Baxter was poisoned, Riley suspects foul play. And then there's the odd addition of a teddy bear left at the crime scene....

When Detective Mike West is called to investigate a murder in a Dublin graveyard, suspicion immediately falls on a local woman, Edel Johnson, whose husband disappeared some months before. But then she disappears. Evidence leads West to a small village in Cornwall, but when he arrives, he finds Edel has got there before him. Her explanation seems to make sense, but as West begins to think his suspicions of her are unfounded, she disappears again. Is she guilty? West, fighting an unsuitable attraction, doesn't want to believe it.

An abandoned building goes up in flames. Six women are chained inside and left to die - the truth is left to burn with them. Only one piece of evidence remains, but will it be enough to find their killer? Retired detective Warren Carter has been suffocated by grief for his wife and is looking for a new start. But when he gets a call that cuts to the heart of the force, investigating a corrupt police officer, he has to accept. This time, though, he’s going to have to face his demons and work out who to trust when the truth is guarded by his own colleagues.

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.

A killer stalks the streets of East London. All over the area, murdered young women are discovered, their bodies posed into disturbing recreations of fairy tale princesses. Detective Ruby Preston is determined to hunt down the murderer who is using the women to realise his dark fantasies. But when body parts are found at the home of her lover, Nathan Crosby, Ruby is torn between her job and her heart. Convinced that he is being framed, Ruby must catch the killer before Nathan becomes the number one suspect.

Detective Alan Auhl does things his own way - and gets results. He works cold cases now. Like the death of John Elphick - his daughters are still convinced he was murdered, the coroner not so sure. Or the skeleton that’s just been found under a concrete slab. Or the doctor who killed two wives and a girlfriend and left no evidence at all....

Barely a month since his promotion to Inspector, DI Ford is called in to investigate the murder of a young nurse and her son in a small flat in Salisbury. There are few clues, and no apparent motive, but Ford can sense that there's a serial killer at work. After all, he knows from brutal personal experience how killers cover their tracks.... It's been six years since Ford lost his wife in a climbing accident - an accident he caused. He is desperate to keep the truth hidden, especially from his son, Sam.

Detective Sergeant James Henderson's remarkable gut instincts have put him on a three-year fast track to becoming an inspector. But the advancement of his career has come at a cost. Gay, posh and eager to prove himself in the Metropolitan Police, James has allowed himself few chances for romance. But when the murder of barrister Maria Curzon-Whyte lands in his lap, all that changes. His investigation leads him to a circle of irresistibly charming men. And though he knows better, James finds himself enticed into their company.

A shocking double-murder scene greets Detective Inspector Philip Brennan when he is called to a flat in Colchester. Two women are viciously cut open and laying spread-eagled, one tied to the bed, one on the floor. The woman on the bed has had her stomach cut into and her unborn child is missing. But this is the third time Phil and his team has seen such an atrocity. Two other pregnant women have been killed in this way and their babies taken from them. No one can imagine what sort of person would want to commit such horrible crimes.

On a warm evening in late summer, best friends Raymond and Cara camp out overnight in the garden. By morning, Raymond is dead and Cara is missing. DI Rita Cannan is called home to the sleepy seaside town of Green-on-the-Sea to investigate Raymond’s murder and try to find Cara - alive. But the case carries eerie echoes of another girl’s death that rocked the close-knit community, decades ago.

In the darkness of a cold December morning, Detective Kim Stone steps through the doors of Halesowen Police Station. She’s about to meet her team for the first time. When the body of a young man is found beheaded and staked to the ground in a secluded area of the Clent Hills, Kim and her new squad rush to the crime scene. This audio edition includes exclusive bonus content.

DI Kate Young is on leave. She’s the force’s best detective, but her bosses know she’s under pressure, on medication and overcoming trauma. So after her bad judgement call leads to a narrowly averted public disaster, they’re sure all she needs is a rest. But when Staffordshire Police summon her back to work on a murder case, it’s a harder, more suspicious Kate Young who returns. With a new ruthlessness, she sets about tracking down a clinical, calculating serial killer who is torturing victims and leaving clues to taunt the police.