Two skeletons are discovered in Lamentation Tarn, a mountain lake. Talented detective Mike Nash and his team have little evidence with which to work, until a surprising discovery prompts them to contact law enforcement agencies in Eastern Europe.

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?

A woman is found in a local cemetery, crushed to death under a gravestone. A production company is there, filming the remake of a classic sci-fi TV show on the grounds, making the investigation more difficult for DCI Harry McNeil. It's his first day in charge of the cold case unit in Edinburgh. After spending four years in Professional Standards, he has little choice but to take the promotion.

Met cop DI Rob Marshall is hot on the trail of the serial killer known as the Chameleon, who has abducted, tortured and killed a series of young women in Northwest London. As they close in, the Chameleon—who switches identity to get close to his victims—shoots Marshall’s partner and escapes.

A dead man on the beach. A detective with everything to prove. And a secret that won't stay buried. When a man’s body washes up on the North Yorkshire coast with a gunshot wound to the chest, DCI Tom Raven is handed the case. The only clue to the victim’s identity? A ring engraved with two names. Raven hasn’t set foot in Scarborough for over thirty years. Now he’s back – leading a murder investigation and facing ghosts from his past.

London, 1992. Late one night, Edward Crane, 76, is declared dead at a London hospital. An obituary describes him only as a 'resourceful career diplomat'. But Crane was much more than that—and the circumstances surrounding his death are far from what they seem. Fifteen years later, academic Sam Gaddis needs money. When a journalist friend asks for his help researching a possible sixth member of the notorious Trinity spy ring, Gaddis knows that she's onto a story that could turn his fortunes around. But within hours the journalist is dead, apparently from a heart attack.

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.

Attorney Nate Shepherd left a big firm to go out on his own. He sees nothing but opportunity when an out-of-town lawyer wants to hire him as local counsel on a high-profile murder case. Though his family worries that the case hits too close to home, Nate joins the defense team. When circumstances force him to take on a bigger role, Nate ignores his family’s fears and throws himself into his client’s defense.

The story opens with the apparently accidental drowning of a sixth form student in the Norfolk countryside. As a matter of routine, or so it seems, the case passes across the desk of Detective Sergeant Smith, recently returned to work after an internal investigation into another case that has led to tensions between officers at Kings Lake police headquarters. As an ex-DCI, Smith could have retired by now, and it is clear that some of his superiors wish that he would do so.

When Victoria Davies was pushed off her stately home's roof in 2001, all evidence pointed to her husband Michael. But now, 20 years later a letter has appeared, written by Victoria before her death; a letter that was never received, and a letter that brings new suspects into the fray; Labor MPs Shaun Donnal, Andrew MacIntyre, and Charles Baker.

Detective Chief Inspector Harry Grimm is forced to take leave from Bristol’s Major Investigations Team when his boss, tired of Harry chasing the ghost of his murderous father, sends him north on secondment. Used to city life and high stress, Harry fears his life will now be spent handing out speeding tickets, finding lost sheep, and directing tourists. But when a local teenager runs away, Harry finds himself pulled into an investigation much worse than anyone could have ever expected.

The head of Scotland’s most powerful crime family is brutally murdered, his body dumped inside an ancient grave in a remote cemetery. Detectives Max Craigie and Janie Calder arrive at the scene, a small town where everyone has secrets to hide. They soon realise this murder is part of a blood feud between two Scottish families that stretches back to the 1800s. One thing’s for certain: it might be the latest killing, but it won’t be the last.

Wolf Hadda's life was a fairytale - successful businessman and adored husband. But a knock on the door one morning ends it all. Universally reviled, thrown into prison, Wolf retreats into silence. Seven years later Wolf begins to talk to the prison psychiatrist and receives parole to return home. But there's a mysterious period in Wolf's past when he was known as the Woodcutter. Now the Woodcutter is back, looking for truth and revenge...

He’s the Man With No Name and the owner of No Alibis, a mystery bookshop in Belfast. But when a detective agency next door goes bust, the agency’s clients start calling into his shop asking him to solve their cases. It’s not as if there’s any danger involved. It’s an easy way to sell books to his gullible customers and Alison, the beautiful girl in the jewellery shop across the road, will surely be impressed. Except she’s not – because she can see the bigger picture.

When a 15-year-old girl fails to make it home after school, DI Heather Filson believes she’s dealing with just another teenage runaway. The girl’s grandfather, a notorious Glasgow gangster, disagrees. Convinced one of his underworld enemies has grabbed her, he’s prepared to bathe the city in blood in order to bring his princess home.