Terror stalks the streets of Bayou Breaux, Louisiana. A suspected murderer is free on a technicality, and the cop accused of planting evidence against him is ordered off the case. But Detective Nick Fourcade refuses to walk away. He’s stepped over the line before. This case threatens to push him over the edge. He’s not the only one. Deputy Annie Broussard found the woman’s mutilated body. She still hears the phantom echoes of dying screams. She wants justice.

He performs his profane ceremony in a wooded Minneapolis park, anointing his victims, then setting the bodies ablaze. He has already claimed three lives, and he won't stop there. Only this time there is a witness. But she isn't talking. Enter Kate Conlan, former FBI agent turned victim/witness advocate. Not even she can tell if the reluctant witness is a potential victim or something more troubling still.

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.

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.

Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?