Still traumatised by her brush with a psychopath, Detective Cassie Maddox transfers out of the murder squad and starts a relationship with fellow detective Sam O'Neill. When he calls her to the scene of his new case, she is shocked to find that the murdered girl is her double. What's more, her ID shows she is Lexie Madison - the identity Cassie used years ago as an undercover detective.

The course of Frank Mackey's life was set by one defining moment when he was 19. The moment his girlfriend, Rosie Daly, failed to turn up for their rendezvous in Faithful Place, failed to run away with him to London as they had planned. Frank never heard from her again. Twenty years on, Frank is still in Dublin, working as an undercover cop. He's cut all ties with his dysfunctional family. Until his sister calls to say that Rosie's suitcase has been found....

In Broken Harbour, a ghost estate outside Dublin - half-built, half-inhabited, half-abandoned - two children and their father are dead. The mother is on her way to intensive care. Scorcher Kennedy is given the case because he is the Murder squad's star detective. At first he and his rookie partner, Richie, think this is a simple one: Pat Spain was a casualty of the recession, so he killed his children, tried to kill his wife Jenny, and finished off with himself.

The photo shows a boy who was murdered a year ago.The caption says, "I know who killed him". Detective Stephen Moran hasn't seen Holly Mackey since she was a nine-year-old witness to the events of Faithful Place. Now she's 16 and she's shown up outside his squad room, with a photograph and a story. Even in her exclusive boarding school, in the graceful golden world that Stephen has always longed for, bad things happen and people have secrets.

Antoinette Conway, the tough, abrasive detective from The Secret Place, is still on the Murder Squad, but only just. She's partnered up with Stephen Moran now, and that's going well - but the rest of her working life isn't. Antoinette doesn't play well with others, and there's a vicious running campaign in the squad to get rid of her.

When the remains of a brutally murdered young woman are left hanging from the Glenfinnan Monument in the Highlands of Scotland, DCI Jack Logan and his Major Investigations team are dispatched to investigate. At first, the case appears to be fairly open and shut. But, as evidence mounts, Jack uncovers some shocking truths about the victim that risk turning the investigation into a potentially explosive international incident.

One night changes everything for Toby. A brutal attack leaves him traumatised, unsure even of the person he used to be. He seeks refuge at his uncle's rambling home, the Ivy House, filled with cherished memories of wild-strawberry summers and teenage parties with his cousins. But not long after Toby's arrival, a discovery is made. A skull, tucked neatly inside the old wych elm in the garden. 

When a body is found on a lonely cliff top path, the angelic face of a murdered teenager lies facing the rising sun. Strangled by the hands of an unknown killer, it falls to DI Tom Janssen and his fledgling team to find out how she came to be there. Destined for a career in medicine, one to rival that of her parents, Holly Bettany’s future was as bright as it had been privileged. Seemingly, all that could threaten this promising teenager’s life was Holly herself.

A secret worth dying for is a secret worth killing...When a violent storm uncovers the remains of an unknown young woman, long buried among the sand dunes, DI Tom Janssen must piece together fragmentary evidence to determine how she came to be there. In the years she lay undiscovered, several young women have disappeared, and as the team works through the possibilities, they come to an uncomfortable conclusion...Is a serial killer stalking coastal Norfolk? Each missing person had a story. Each of them had enemies. Some were more dangerous than others...

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....

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.

The remains of a 17th-century witch, an MP found hanging above a five-pointed star and three girls with powers beyond anyone's control. As DI Tanner and DS Evans endeavour to make plans for their big day, the chance discovery of Norfolk's last known witch, tried and hanged by Norfolk’s infamous Witchfinder General, sparks a chain of the most horrific events, none of which Tanner seems able to prevent.

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,

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.

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.