When a young girl is discovered dead on an isolated Irish country road, it seems to be a simple hit and run. Then the cops see the tattoo on her back - a pair of beautifully wrought angel wings. Forensic investigator Reilly Steel is soon on the scene and she suspects that there is more to this case than a straightforward murder. Then the angel tattoo is traced to other children - both dead and alive - who are all similarly marked....

When a young girl is discovered dead on an isolated Irish country road, it seems to be a simple hit and run. Then the cops see the tattoo on her back - a pair of beautifully wrought angel wings. Forensic investigator Reilly Steel is soon on the scene and she suspects that there is more to this case than a straightforward murder. Then the angel tattoo is traced to other children - both dead and alive - who are all similarly marked.…

Eighteen months on from the case that nearly cost him his life, only DCI Jamie Carver knows the incredible extent of the Worshipper Killer’s network of depravity - and the storm that will hit when others learn of it. They include those who walk Whitehall's corridors of power as well as others in high office and even, maybe, the upper echelons of the Police Service itself. When former members of that network start dying, Carver suspects that someone is out to make sure that their involvement, at least, remains hidden - and will stop at nothing to do so. 

DCI Matilda Darke has returned to work after a nine-month absence. A shadow of her former self, she is tasked with reopening a cold case: the terrifyingly brutal murders of Miranda and Stefan Harkness. The only witness was their 11-year-old son, Jonathan, who was too deeply traumatised to speak a word. Then a dead body is discovered, and the investigation leads back to Matilda's case. Suddenly the past and present converge, and it seems a killer may have come back for more.... 

When bodies start washing up along the banks of the River Thames, DI Henley fears it is the work of Peter Olivier, the notorious Jigsaw Killer. But it can’t be him: Olivier is already behind bars, and Henley was the one who put him there. She’d hoped she’d never have to see his face again, but Henley knows Olivier might be the best chance they have at stopping the copycat killer. But when Olivier learns of the new murders, helping Henley is the last thing on his mind.... Now all bets are off, and the race is on to catch the killer before the body count rises.