When a routine drowning investigation reveals a link to a dormant serial killer, DI Brook finds himself framed for murder and forced to confront a legacy of violence. Tasked with clearing his own name, Brook must navigate the scrutiny of his peers while tracking a copycat killer who claims to be continuing the work of the deceased Reaper. The narrative follows a tense, procedural framework, tracking Brook's investigation as he uncovers historical crimes dating back to 1975. He faces mounting pressure from both the police hierarchy and the elusive disciples who are determined to keep the Reaper's influence alive.

This work presents a grim exploration of the psychological aftermath of serial violence within a police procedural framework. The narrative relies on the tension between a detective's past and the emergence of a new, fanatical threat. Readers likely encounter a fast-paced investigation that emphasizes the procedural mechanics of solving a cold case while under personal duress. The premise suggests a focus on the cyclical nature of crime and the dangerous reach of a killer's legacy.