Leo Stone is a ruthless killer or the victim of a miscarriage of justice. A year ago, he was convicted of the murder of two women and sentenced to life in prison. But now he's free, and according to him, he's innocent. DS Maeve Kerrigan and DI Josh Derwent are determined to put Stone back behind bars where he belongs, but the more Maeve finds out, the less convinced she is of his guilt. Then another woman disappears in similar circumstances. Is there a copycat killer, or have they been wrong about Stone from the start?

COP KILLER STRIKES AGAIN! The tabloid headlines are lurid but accurate. A killer is terrorising London but this time it is the police who are the targets. And Maeve Kerrigan and her boss Josh Derwent are clueless as to why. But it will only be a matter of time before the murderer selects his next victim…

Eighteen-year-old Chloe Emery returns to her West London home one day to find the house covered in blood and Kate, her mother, gone. There may not be a body, but everything else points to murder. Maeve Kerrigan is young, ambitious and determined to prove she's up to her new role as detective sergeant. She suspects Chloe is holding something back, but best friend Bethany Norris won't let Maeve get close. What exactly is Bethany protecting Chloe from? As the team dig deeper into the residents of Valerian Road, no one is above suspicion.

He meets women. He gains their trust. He kills them. That’s all Maeve Kerrigan knows about the man she is hunting. Three women have been strangled in their homes by the same sadistic killer. With no sign of a break-in, every indication shows that they let him in. But the evidence is pointing at a shocking suspect: DI Josh Derwent, Maeve’s colleague. Maeve refuses to believe he could be involved, but how well does she really know him?

The teenage girl was the first victim. Her throat cut to the bone, she didn’t stand a chance. Her mother, at least, had time to fight back. Briefly. Called to the crime scene in leafy Wimbledon, Maeve Kerrigan’s first thought is that this is a domestic dispute gone badly. But the husband is found lying bleeding and unconscious in an upstairs room. As a criminal barrister he insists he’s the third victim rather than their prime suspect, even if he’s a man who makes enemies easily. The only other surviving family member is 15-year-old Lydia....

Everyone's heard the rumours about elite gentlemen's clubs, where the champagne flows freely, the parties are the height of decadence...and the secrets are darker than you could possibly imagine. DS Maeve Kerrigan finds herself in an unfamiliar world of wealth, luxury and ruthless behaviour when she investigates the murder of a young journalist, Paige Hargreaves. Paige was working on a story about the Chiron Club, a private society for the richest and most privileged men in London. Then she disappeared. 

Maeve Kerrigan is an ambitious detective constable, keen to make her mark on the murder task force. Her male colleagues believe Maeve’s empathy makes her weak, but the more she learns about the latest victim, Rebecca Haworth, from her grieving friends and family, the more determined Maeve becomes to bring her murderer to justice. But how do you catch a killer no one has seen? And when so much of the evidence they leave behind has gone up in smoke?

DI Nikki Galena: A police detective with nothing left to lose, she's seen a girl die in her arms, and her daughter will never leave the hospital again. She's gotten tough on the criminals she believes did this to her. Too tough. And now she's been given one final warning: make it work with her new sergeant, DS Joseph Easter, or she's out.

Dr Ruth Galloway is flattered when she receives a letter from Italian archaeologist Dr Angelo Morelli, asking for her help. He's discovered a group of bones in a tiny hilltop village near Rome but doesn't know what to make of them. It's years since Ruth has had a holiday, and even a working holiday to Italy is very welcome!

Detective Nikki Galena's friend and neighbor meets a tragic end, but there's more to his death than meets the eye. And someone terrible from DS Joseph Easter's past is back.