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....

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 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 he was 12 years old, Adam Ryan went playing in the woods one day with his two best friends. He never saw them again. Their bodies were never found, and Adam himself was discovered with his back pressed against an oak tree and his shoes filled with blood. He had no memory of what had happened. Twenty years on, Rob Ryan - the child who came back - is a detective in the Dublin police force. He's changed his name. No one knows about his past.

Edinburgh is gripped by the greatest terror it has ever known. A lone bomber is targeting victims across the city, and no one is safe. DCI Ava Turner and DI Luc Callanach face death every day - and not just the deaths of the people being taken hostage by the killer. When it becomes clear that with every tip-off they are walking into a trap designed to kill them, too, Ava and Luc know that finding the truth could mean paying the ultimate price.

When a police detective is taken off life support after falling into a coma, only an autopsy reveals the murderous act that precipitated her death. She'd been working on a special task force within North London's Nigerian community, and Acting Detective Superintendent Thomas Lynley is assigned to the case, which has far-reaching cultural associations that have nothing to do with life as he knows it. 

Toby is a happy-go-lucky charmer who's dodged a scrape at work and is celebrating with friends when the night takes a turn that will change his life - he surprises two burglars who beat him and leave him for dead. Struggling to recover from his injuries, beginning to understand that he might never be the same man again, he takes refuge at his family's ancestral home to care for his dying uncle Hugo. Then a skull is found in the trunk of an elm tree in the garden - and as detectives close in, Toby is forced to face the possibility that his past may not be what he has always believed.

Forensic archaeologist Ruth Galloway is called in to investigate when builders, demolishing a large old house in Norwich to make way for a housing development, uncover the bones of a child beneath a doorway - minus the skull. Is it some ritual sacrifice or just plain straightforward murder? DCI Harry Nelson would like to find out - and fast.

When she's not digging up bones or other ancient objects, Ruth Galloway lectures at the University of North Norfolk. She lives happily alone in a remote place called Saltmarsh overlooking the North Sea and, for company; she has her cats Flint and Sparky, and Radio 4. When a child's bones are found in the marshes near an ancient site that Ruth worked on ten years earlier, Ruth is asked to date them.

Snow is falling in the exclusive alpine ski resort of Saint Antoine, as the shareholders and directors of Snoop, the hottest new music app, gather for a make-or-break corporate retreat to decide the future of the company. At stake is a billion-dollar dot-com buyout that could make them all millionaires or leave some of them out in the cold. When an avalanche cuts the chalet off from help and one board member goes missing in the snow, the group is forced to ask - would someone resort to murder to get what they want?

It's a day like any other for security chief Tracy Waterhouse, until she makes a purchase she hadn't bargained for. One moment of madness is all it takes for Tracy's humdrum world to be turned upside down, the tedium of everyday life replaced by fear and danger at every turn.

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 badly burned body is found near the remote Ardnamurchan Lighthouse on the west coast of Scotland, it feels like just another day on the job for DCI Jack Logan and his team. But the victim’s list of enemies, including a diminutive loan shark and a powerful local politician, is far longer than Jack was prepared for. And don’t even get him started on the magic psychic sex cult.

DCI Jack Logan should’ve known things were going too well. Genuinely happy for the first time in years, Jack has almost fooled himself into believing that the world is a decent place. But when the discovery of a mutilated body kicks off a series of grisly murders, Jack’s dream of a peaceful life rapidly begins to crumble around him. With friends in danger and enemies begging for his help, Jack must risk everything to protect the final would-be victim and stop the most monstrous killer he’s ever faced.