When a murderer leaves a familiar pink scarf as his calling card, Detective Chief Inspector Whitney Walker is forced to dig into a cold case, not sure if she's looking for a killer or a copycat. With a growing pile of bodies, and no clues, she turns to forensic psychologist Dr. Georgina Cavendish despite their relationship being at an all-time low. Can they overcome the bad blood between them to solve the unsolvable?

Police officer Sebastian Clifford never planned on becoming a private investigator. But when a scandal leads to the disbandment of his London based special squad, he finds himself out of a job. That is, until his cousin calls on him to investigate her husband’s high-profile death, and prove that it wasn’t a suicide. Clifford’s reluctant to get involved, but the more he digs, the more evidence he finds. With his ability to remember everything he's ever seen, he's the perfect person to untangle the layers of deceit.

Brought up believing that sex is the devil's work, a killer only finds release once he has saved his victim's souls. Abiding by his vision, he marks them as his. A gift to guide his chosen ones on the rightful path to redemption. Detective Inspector Paolo Sterling is out to stop him, but Paolo has problems of his own. Hunting down the killer as the death toll rises, the lines soon blur between Paolo's personal and professional lives.

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.

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.

Finding a home at DCI Alexander Monroe's Last Chance Saloon Crime Unit, Declan and his team are still recovering from the fallout connected to their most recent case.... But when Declan's old mentor, now terminally ill with cancer confesses to a gruesome murder, on the condition that Declan himself takes on the case, Declan and his colleagues find themselves in a race against time to find the real killer before a violent gang war breaks out over it. 

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.

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?

When a girl’s body is found strangled, raped, and horrifically mutilated by a boat’s propeller, deep in the heart of the Norfolk Broads, newly arrived Detective Inspector John Tanner is asked to assist with the investigation. At first, all the evidence points to a man who had a multi-million-pound reason to kill her. But when an alibi is produced from an unexpected source, and another body appears at the base of a slipway, Tanner finds himself turning to local girl Detective Constable Jenny Evans for help. 

Five figures gather 'round a shallow grave. They had all taken turns to dig. An adult-sized hole would have taken longer. An innocent life had been taken, but the pact had been made. Their secrets would be buried, bound in blood. Years later a headmistress is found brutally strangled, the first in a spate of gruesome murders that shock the Black Country.

When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.

Haunted by his inability to track down and save his missing wife, DCI Robert Kett leaves the Metropolitan Police behind and moves to Norwich with his three young children, hoping to heal their broken family. But his newfound peace doesn’t last. Two newspaper delivery girls have gone missing in the city, and the clues point to a serial kidnapper. Kett is dragged into the centre of one of the darkest cases of his career - a case that pits him head-to-head against a horrifying evil.

Starting a new life in Snowdonia was always DI Ruth Hunter's dream. Until a twisted killer turned it into her worst nightmare. Detective Inspector Ruth Hunter lives with the pain of her partner’s mysterious and unsolved disappearance. About to hit 50, the veteran police officer trades in the crime-ridden streets of London for a more peaceful life in rural North Wales. But Ruth has barely settled into her new position in North Wales Police, when the body of a brutally murdered woman is discovered...with strange symbols carved into her skin.

Carla Andrews and Lorraine West are work colleagues and best friends. They socialise together, they work in the same bookmakers and they support each other as only best friends can. Then they are murdered together. When DI Tom Fowler is handed the case, he discovers a journal that Carla has left and must unpick the secrets Lorraine has kept hidden. Soon Carla’s and Lorraine’s husbands become the main suspects. It’s usually the spouse who is responsible, isn’t it? The investigation progresses until Isaac West, Lorraine’s 16-year-old son, disappears.

Out walking near the rain-swelled river running past her small Welsh town, she comes across the body of Amber Morgan. Fabia’s police training tells her instantly that the death is the result of foul play. But no longer in the force, all she can do is call it in. Yet she has mixed feelings when she discovers it is her former colleague, Matt Lambert, newly promoted to chief inspector, who will head the investigation into the girl’s death.