When Dr. Emma Sweeney stumbles across the victim of a hit-and-run outside Galway University late one evening, she calls her partner, Detective Cormac Reilly, bringing him first to the scene of a murder that would otherwise never have been assigned to him. A security card in the dead woman's pocket identifies her as Carline Darcy, a gifted student and heir apparent to Irish pharmaceutical giant Darcy Therapeutics. 

Galway 1993: Young Garda Cormac Reilly is called to a scene he will never forget. Two silent, neglected children - 15-year-old Maude and five-year-old Jack - are waiting for him at a crumbling country house. Upstairs, their mother lies dead. Twenty years later, a body surfaces in the icy black waters of the River Corrib. At first it looks like an open-and-shut case, but then doubt is cast on the investigation's findings - and the integrity of the police. Cormac is thrown back into the cold case that has haunted him his entire career - what links the two deaths, two decades apart?

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.  

In the desolate outback town of Finnigans Gap, police struggle to maintain law and order. Thieves pillage opal mines, religious fanatics recruit vulnerable young people, and billionaires do as they please. Then an opal miner is found crucified and left to rot down his mine. Nothing about the miner's death is straightforward, not even who found the body. Sydney homicide detective Ivan Lucic is sent to investigate, assisted by inexperienced young investigator Nell Buchanan.

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....

Former soldier. Ex-copper. Current man on the edge. Shunned by his old colleagues, and dividing his time between a dead-end job and the bottom of a whisky bottle, former Police Scotland detective superintendent Bob Hoon’s life is a mess. Then an old face from Hoon’s Special Forces days turns up asking for help: His teenage daughter has been missing for months, the police have drawn a blank, and he needs the kind of help that only Hoon can provide. And besides, Hoon owes him one.

The inspector frowned and examined the earth under the trees. As he scanned the glade, his stomach lurched. One, two, three, four. Five, counting the mound of earth disturbed under the tent. Somebody had cleared the earth of its natural layer and sown their own flowers. In five places. Five graves. A young woman, Fiona Holland, has gone missing from a small Irish village. A search is mounted, but there are whispers. Fiona had a wild reputation. Was she abducted, or has she run away?

Kieran Elliott's life changed forever on the day a reckless mistake led to devastating consequences. The guilt that still haunts him resurfaces during a visit with his young family to the small coastal community he once called home. Kieran's parents are struggling in a town where fortunes are forged by the sea. Between them all is his absent brother, Finn. When a body is discovered on the beach, long-held secrets threaten to emerge. A sunken wreck, a missing girl, and questions that have never washed away....

Before Owen Michaels disappears, he manages to smuggle a note to his new wife, Hannah: protect her. Hannah knows exactly who Owen needs her to protect - his 16-year-old daughter, Bailey, who lost her mother tragically as a child. And who wants absolutely nothing to do with her new stepmother. As her increasingly desperate calls to Owen go unanswered, his boss is arrested for fraud and the police start questioning her, Hannah realises that her husband isn't who he said he was. And that Bailey might hold the key to discovering Owen's true identity and why he disappeared.

Christmas day, and DCI Tom Reynolds receives an alarming call. A mass grave has been discovered on Oileán na Caillte, the island which housed the controversial psychiatric institution St. Christina's. The hospital has been closed for decades, and onsite graves were tragically common. Reynolds thinks his adversarial boss is handing him a cold case to sideline him. But then it transpires another body has been discovered amongst the dead - one of the doctors who went missing from the hospital in mysterious circumstances 40 years ago.

Kids can be so cruel. They'll call you names. Hurt your feelings. Push you to your death. In the garden of an abandoned house, Luke Connolly lies broken, dead. The night before, he and his friends partied inside. Nobody fought, everybody else went home safely. And yet, Luke was raped and pushed to his death. His alleged attacker is now in custody. DCI Tom Reynolds is receiving the biggest promotion of his career when a colleague asks him to look at the Connolly case, believing it's not as cut and dried as local investigators have made out.

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.

Evie Cormac was found at a murder scene six years ago, hiding in a secret room. She has never revealed her real name, why she was in that house, or what she saw. Forensic psychologist Cyrus Haven wants to help the traumatised teenager. He thinks unravelling Evie's secrets will free her from the past. But he has no idea what he's about to unleash....

Martin Scarsden's new life seems perfect, right up until the moment it's shattered by a voice mail: a single scream, abruptly cut off, from his partner, Mandalay Blonde. Racing home, he finds an unconscious man sprawled on the floor and Mandy gone. Someone has abducted her. But who and why? So starts a twisting tale of intrigue and danger, as Martin probes the past of the woman he loves, a woman who has buried her former life so deep she has never mentioned it.

Philomena McCarthy has defied the odds and become a promising young officer with the Metropolitan Police despite being the daughter of a notorious London gangster. Called to the scene of a domestic assault, she rescues a young woman, Tempe Brown, the girlfriend of a decorated detective. The incident is hushed up, but Phil has unwittingly made a dangerous enemy with powerful friends. Determined to protect each other, the two women strike up a tentative friendship.