Niamh and Conor Ryan are the perfect power couple: smart, successful and beautiful, they have an enviable relationship and an idyllic family life. But then the unthinkable happens. Their oldest son, Tom, is the victim of a hit-and-run. What was Tom doing out walking so late at night? Did he really have problems sleeping, or was he secretly meeting someone? Is it a coincidence that his friend, Lauren, committed suicide nearby - or is there something more sinister going on? 

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.

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?

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.

Just when he thought he was out.... Burdened by guilt over the trauma recently inflicted on his friends and colleagues, former-Detective Chief Inspector Jack Logan has spent the past nine months living in self-imposed exile. When a mother and her young daughter are the victims of a double murder staged to look like suicide, Logan is dragged back to help hunt down and catch a brutal, calculating killer. But the world has moved on without him.

How far would you go to bury the truth? While searching for a missing hill walker, Glencoe Mountain Rescue Team uncovers a body - just not the one they were looking for. Still dealing with the fallout from their last case, DCI Jack Logan and his team venture south from Inverness to investigate a brutal, gangland-style execution in the wilds of the Highland countryside. As the victim's dark secrets are gradually revealed, Jack uncovers the rot lurking beneath the stunning scenery, making himself the target of a criminal more dangerous than any he has faced before.

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.

Police corruption, an investigation that ends in tragedy, and the mystery of a little girl's silence - three unconnected events that will prove to be linked by one small town. While Detective Cormac Reilly faces enemies at work and trouble in his personal life, Garda Peter Fisher is relocated out of Galway with the threat of prosecution hanging over his head. But even that is not as terrible as having to work for his overbearing father, the local copper for the pretty seaside town of Roundstone.

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?

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.

Tormented by the recent loss of a colleague, DCI Jack Logan is on the warpath, determined to bring down all those he holds responsible for the officer's death. His quest for revenge is cut short when a woman's body turns up on the remote island of Canna, and Jack is summoned to investigate. As a storm closes in, Jack finds himself cut-off from the rest of the world, with no car, no phone signal, and only DC Neish for company,

Private Detective Cormoran Strike is visiting his family in Cornwall when he is approached by a woman asking for help finding her mother, Margot Bamborough - who went missing in mysterious circumstances in 1974. Strike has never tackled a cold case before, let alone one 40 years old. But despite the slim chance of success, he is intrigued and takes it on; adding to the long list of cases that he and his partner in the agency, Robin Ellacott, are currently working on.

Rachel is afraid she may have done something terrible. She's sitting in a room, being asked whether she killed someone. She doesn't understand how her life has changed so completely. When she was younger, heads would turn when she walked into a room. Her children needed her; her husband adored her. But somehow the years wore that all away. She was so busy raising her children, looking after her parents.... 

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.