After an elite criminal profiling unit is shut down amid a storm of scandal and mismanagement, only one person emerges unscathed. Forensic psychiatrist Doctor Alexander Gregory has a reputation for being able to step inside the darkest minds to uncover whatever secrets lie hidden there, and soon enough he finds himself drawn into the murky world of murder investigation. In the beautiful hills of County Mayo, Ireland, a killer is on the loose. Panic has a stranglehold on its rural community, and the Garda are running out of time. 

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.

Fresh from a high-profile case in the Paris fashion world, elite forensic psychologist and criminal profiler Dr Alexander Gregory receives a call from the New York State Homicide Squad. The wife of a notorious criminal has been admitted to a private psychiatric hospital and can no longer testify in his upcoming trial. Without her, their case will collapse but, amid reports that the staff are as unpredictable as their patients, who can the police trust? 

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.

It is the week before Christmas, and the cathedral city of St Albans is blanketed by snow. But beneath the festive lights, darkness is stirring. The frozen body of a young girl is discovered by the ice-covered lake. The police scramble for clues. A local woman, Jenny, has had visions of what happened the night of the murder. But Jenny is an exhausted new mother whose midnight wanderings pull her ever closer to the lake. Then another girl goes missing, and the community unravels. Neighbour turns against neighbour, and Jenny has no idea who to believe. 

Oxford, 1960. There's a murderer on the loose, and two unlikely heroes are poised to solve the case. Meet Trudy Loveday - smart, enthusiastic and always underestimated. In the hope of getting her out of the way, Trudy is assigned to help coroner Clement Ryder as he reopens the case of a young woman's death. She can't believe her luck - she is actually going to be working on a real murder case. Meanwhile, the rest of the police force are busy investigating a series of threats and murders in the local community, and Clement can't help but feel it's all linked.

Melissa Craig is absolutely delighted with her new life in an old crumbling cottage, spending her days pruning the primroses and getting to know Binkie, the ginger cat next door. She only wishes she had made the move to the countryside sooner. But when a knock at the door brings news of a shocking discovery, she suddenly finds herself thrown in to the middle of a baffling mystery: the bones of a young woman have been found in the woods just behind her new home. Perhaps the little village of Upper Bembury is not as idyllic as it first seemed? Strange phone calls in the night convince Melissa that the police are barking up completely the wrong tree, so she can’t resist doing a little digging of her own. From the bingo hall to the beauty salon and beyond, her search ruffles a few feathers and uncovers many of the village’s most scandalous secrets, but gets her no closer to finding the culprit.

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.

Peter Marlin's wife is found strangled and he becomes the prime suspect. She'd only just returned from an unexplained absence of several months. And during that time, Peter had found a new lover. Everything points to the husband but there's no real proof. Inspector John Crow is called in to help the local police. But his new colleagues aren't keen on an outsider. And Crow must solve the case before anyone else dies. 

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.