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.  

When DI Rowan Jackman and DS Evans are told that the IT boss has disappeared, they soon suspect foul play. Orla Cracken, known as Orac, is no ordinary techie; she was once a field agent traveling abroad undercover, working for the government. Meanwhile DC Robbie Melton discovers that two people, both urban explorers, have mysteriously disappeared whilst out exploring abandoned buildings. One went missing at a disused airfield, but was it a military base, or was it civilian?

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....

On her lunch break in Melbourne, Kim Leamy is approached by a stranger investigating the disappearance of a little girl from her Kentucky home 28 years earlier. He believes Kim is that girl. At first she brushes it off but soon finds herself questioning her family history and begins to unravel an unexpectedly dark past.

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 at night, two powerful men meet in a secret location to discuss a long nurtured plan about to come to fruition. One is desperate to know there is nothing standing in their way - the other assures him everything is taken care of. Hours later, a high-ranking government official called Ryan Finnegan is brutally slain in the most secure building in Ireland - Leinster House, the seat of parliament. Inspector Tom Reynolds and his team are called in to uncover the truth behind the murder.

Set against the backdrop of an eerie island town in the dead of winter, The Wife and the Widow is a mystery-thriller told from two perspectives: Kate, a widow whose grief is compounded by what she learns about her dead husband’s secret life; and Abby, an island local whose world is turned upside down when she’s forced to confront the evidence that her husband is a murderer. But nothing on this island is quite as it seems, and only when these women come together can they discover the whole story about the men in their lives. 

For years, rumors of the 'Marsh Girl' have haunted Barkley Cove, a quiet town on the North Carolina coast. So in late 1969, when handsome Chase Andrews is found dead, the locals immediately suspect Kya Clark, the so-called Marsh Girl. But Kya is not what they say. Sensitive and intelligent, she has survived for years alone in the marsh that she calls home, finding friends in the gulls and lessons in the sand. Then the time comes when she yearns to be touched and loved. When two young men from town become intrigued by her wild beauty, Kya opens herself to a new life - until the unthinkable happens. 

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?

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.

James Machie was a man with a genius for violence, his criminal empire spreading beyond Glasgow into the UK and mainland Europe. Fortunately, James Machie is dead, assassinated in the back of a prison ambulance following his trial and conviction. But now, five years later, he is apparently back from the grave, set on avenging himself on those who brought him down. Top of his list is his previous associate, Frank MacDougall, who unbeknownst to D.C.I. Jim Daley, is living under protection on his lochside patch, the small Scottish town of Kinloch.

A woman runs alone in the woods. She convinces herself she has no reason to be afraid, but she's wrong. A predator is stalking the women of Grant County. He lingers in the shadows, until the time is just right to snatch his victim. A decade later, the case has been closed. The killer is behind bars. But then another young woman is brutally attacked and left for dead, and the MO is identical. 

It's June 2008 and 21-year-old Adam Lattimer vanishes, presumed dead. The strain of his disappearance breaks his already fragile family. Ten years later, with his mother deceased and siblings scattered across the globe, Adam turns up unannounced at the family home. His siblings return reluctantly to Spanish Cove, but Adam's reappearance poses more questions than answers. The past is a tangled web of deceit. And, as tension builds, it's apparent somebody has planned murderous revenge for the events of 10 years ago.