She always went to far. DS Alexandra Cupidi has done it again. She should have learnt to keep her big mouth shut after the scandal that sent her packing - resentful teenager in tow - from the London Met to the lonely Kent coastline. Murder is different here, among the fens and stark beaches. She was the one who found the killers. The man drowned in the slurry pit had been herded there like an animal. He was North African, like many of the fruit pickers that work the fields. The more Cupidi discovers, the more she wants to ask - but these people are suspicious of questions. 

London, October 1968. As Beatles fans encamp outside Abbey Road Studios up the road, the Marylebone CID is as much an old boys' club as it ever was: comfortably sexist, racially prejudiced and crawling with corruption. Detective Sergeant Cathal Breen is the pariah of the office, having just run out on a fellow officer held at knifepoint, when it's shaken up by the arrival of WPC Helen Tozer: awkward chatterbox, farmgirl, and the first woman to enter the murder unit - apart from the secretary.

Criminologist Martin Knight lives a gilded life and is a thorn in the side of the police. But then his wife, Liz, goes missing. There is no good explanation and no sign of Martin.... To make things worse, Liz is the ex-girlfriend of DCI Craig Gillard who is drawn into the investigation. Is it just a missing person or something worse? And what relevance do the events around the shocking Girl F case, so taken up by Knight, have to do with the present? The truth is darker than you could ever have imagined.

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.

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 serial killer is burning people alive in the Lake District's prehistoric stone circles. He leaves no clues, and the police are helpless. When his name is found carved into the charred remains of the third victim, disgraced detective Washington Poe is brought back from suspension and into an investigation he wants no part of. He is reluctantly partnered with brilliant but socially awkward civilian analyst Tilly Bradshaw, and the mismatched pair uncover a trail that only he is meant to see. The elusive killer has a plan, and for some reason Poe is part of it.

When a body is discovered, bled dry on a beach, the sleepy seaside town of Weston-super-Mare wakes up to a nightmare. For Detective Inspector Louise Blackwell, recently transferred to the town she last saw as a child, it’s her first case on the job. The victim - Veronica Lloyd, an elderly volunteer at a local church - has puncture wounds to her hands. When a priest is found killed in a nearby church in a similarly grisly condition, it becomes clear that Blackwell is dealing with a righteous and bloody murderer. But the victims aren’t random.

In the Peak District village of Scarsdale, 13-year-old girls didn’t just run away. So when Alison Carter vanished in the winter of '63, everyone knew it was a murder. Catherine Heathcote remembers the case well - a child herself when Alison vanished. Now a journalist, she persuades DI George Bennett to speak of the hunt for Alison. But when a fresh lead emerges, Bennett tries to stop the story - plunging Catherine into a world of buried secrets and revelations.

Detective Sergeant Chris Waters got the call at 05.29 that July morning. This is it, said DCI Reeve, you'll be first there, it's all yours, you're the crime scene manager. Suddenly, after months of waiting and wondering, Waters finds himself in at the deep end, and alone at the scene of a puzzling murder. As the investigation proceeds, the detectives at Kings Lake Central find themselves visiting familiar places and talking to some familiar faces, while old enmities reappear in the incident room. Before this is over, Chris Waters will need to make a career-changing decision.

On a Dublin city street, packed with afternoon Christmas shoppers, a young woman appears, naked, traumatised and bearing burn marks. Tom Reynolds, now chief superintendent, is no longer head of the murder squad. But when it transpires the woman escaped from a house fire started deliberately and that there are more victims, including a baby, Tom is sucked in. What begins as a straightforward case of arson, soon becomes something much more sinister. The people in that house never wanted to be there in the first place. Now more of them are missing.

When she's not digging up bones or other ancient objects, Ruth Galloway lectures at the University of North Norfolk. She lives happily alone in a remote place called Saltmarsh overlooking the North Sea and, for company; she has her cats Flint and Sparky, and Radio 4. When a child's bones are found in the marshes near an ancient site that Ruth worked on ten years earlier, Ruth is asked to date them.

From the number-one best-selling author of The Ashes of London and The Fire Court this is the first instalment in the acclaimed Lydmouth series. Workmen in the small market town of Lydmouth are demolishing an old cottage. A sledgehammer smashes into what looks like a solid wall. Instead, layers of wallpaper conceal the door of a locked cupboard which holds a box - and in the box is the skeleton of a young baby. 

Brighton, 1950: When the body of a girl is found, cut into three, Detective Inspector Edgar Stephens is reminded of a magic trick: the Zig Zag Girl. The inventor of the trick, Max Mephisto, is an old friend of Edgar's. When the dead girl turns out to be known to him, Max decides to help Edgar investigate.

On a cold winter's morning, the body of a young boy is discovered in Epping Forest. The body is pristine and peaceful, his head resting gently on a pillow, an angel pendant clenched in his small fist. It is a murder as carefully planned as it is brutal, and there's one person DI Bishop needs back on his team to help solve such a calculated crime. Holly Wakefield, clinical psychologist for the Met Police, is better than anyone Bishop knows at getting inside the brains of psychopaths.

When two bodies are found sprawled at the bottom of the Devil's Kitchen in the mountains of Snowdonia, it's believed the man found dead killed his wife and then committed suicide. But something doesn't feel right to DI Ian Drake, and his gut instinct has never before let him down. Drake suspects at least one of the deaths could be suspicious, but who would kill such an ordinary couple, and why? This might be Drake's first murder inquiry, but his years as a detective have taught him one thing - every murder has a motive, and every killer leaves a trace.