In this prequel to the international best seller The Ruin, set 10 years prior, bright-eyed Carrie Ryan is at the very start of her career. When she has a hunch about an ongoing murder investigation, she knows it could be her only chance to prove herself and truly break into the “boys' club” of Dublin’s police force.  

Cathy Connolly discovers the bones of a baby concealed in the hem of an old wedding dress. When the dress' original owner, Lavinia Grant, is found dead in a Dublin suburb, Cathy is drawn deep into a complex web of secrets and lies spun by three generations of women. Meanwhile, a fugitive killer has already left two dead in execution style killings across the Atlantic - and now he's in Dublin with old scores to settle. Can the team track him down before he kills again?

A missing girl. A case that's personal. A contract killer on Irish soil. Cat Connolly is back at work. Struggling to adjust to physical and mental scars, her workload once again becomes personal when her best friend, Sarah Jane, goes missing. Sarah Jane's a journalism student, the daughter of a decorated war correspondent, but what could she be working on that could lead to her disappearance? And how deadly will it get?

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.

It's 1975. A baby, minutes old, is forcibly taken from its devastated mother. In 2010, the body of an elderly woman is found in a Dublin public park in the depths of winter. Detective Inspector Tom Reynolds is working the case. He's convinced the murder is linked to historical events that took place in the notorious Magdalene Laundries. Reynolds and his team follow the trail to an isolated convent in the Irish countryside. But once inside, it becomes disturbingly clear that the killer is amongst them....

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.

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.

Late one night a man walks into the luxurious home of disgraced banker Harry McNamara and his wife, Julie. The man launches an unspeakably brutal attack on Harry as a horror-struck Julie watches, frozen by fear. Just an hour later the attacker, JP Carney, has handed himself in to the police. He confesses to beating Harry to death, but JP claims that the assault was not premeditated and that he didn't know the identity of his victim.

When Ella Watson, a woman of wealth and status, is brutally stabbed to death in broad daylight, it sends a shockwave through the Lake District community. Later that day, Keira Bradley meets the same fate. But whereas Ella’s murder is a tragedy, Keira’s death on the notorious Beacon Estate is just another statistic in a dangerous place.

Death stalked the Vale. In every corner, every whisper. They just didn't know it yet. Six neighbours, six secrets, six reasons to want Olive Collins dead. In the exclusive gated community of Withered Vale, people's lives appear as perfect as their beautifully manicured lawns. Money, success, privilege - the residents have it all. Life is good. There's just one problem. Olive Collins' dead body has been rotting inside number four for the last three months. Her neighbours say they're shocked at the discovery, but nobody thought to check on her when she vanished from sight. 

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?

Maeve Kerrigan is an ambitious detective constable, keen to make her mark on the murder task force. Her male colleagues believe Maeve’s empathy makes her weak, but the more she learns about the latest victim, Rebecca Haworth, from her grieving friends and family, the more determined Maeve becomes to bring her murderer to justice. But how do you catch a killer no one has seen? And when so much of the evidence they leave behind has gone up in smoke?

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.

Detective Megan Thomas hoped that moving to Devon would mean a quiet life. Her years undercover in London left her broken and alone, unsure if she would ever recover. Slowly, she’s learning to work with a team and trust other people. But when her sister, Debbie, finds the body of local businessman Greg Porter, that peace is shattered. Porter’s wife and children don’t seem entirely grief-stricken, and his business dealings are not all they appear to be. So why are the police so determined to focus on Debbie? 

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.