When a dismembered body is found in the boot of Isaac McFadden’s car, the verdict seems open and shut. But then the police uncover a chilling notebook—a coded chart hinting at more victims, and possibly a serial killer on the loose.
DI Linus Sutton has no way to crack the cipher, so he turns to forensic psychologist Dr Olivia Winter—a woman with a past steeped in trauma, and a mind built to untangle the darkest puzzles.
Olivia knows horror. She’s survived it twice.
But this code? It’s personal. And the deeper she digs, the closer death circles—because this killer has done more than plan.
He’s studied her.
And the final girl is running out of time.
Will she break the code before the killer breaks her?
