When a notorious murder suspect is found brutally dissected, a haunted detective reignites a cold case investigation that threatens to expose a lethal underground cult. DI Sheldon Brown, still reeling from the unsolved murder of Alice Kenyon, finds his obsession with the primary suspect, Billy Privett, suddenly relevant again after Privett is found dead. Alongside a struggling lawyer named Charlie Barker, Brown must navigate a dangerous landscape of narcotics and hidden histories to identify the killer. The narrative follows a procedural framework, alternating between the perspectives of the law enforcement officer and the legal professional as they peel back layers of a conspiracy that reaches far deeper than a single homicide.

This novel presents a dark, gritty atmosphere that aligns with the conventions of contemporary British crime fiction. The narrative structure relies on the tension between the detective's personal obsession and the legal complexities introduced by the lawyer character. Readers likely find the pacing consistent with procedural thrillers, where the investigation serves as a mechanism to reveal systemic corruption and hidden societal threats. The focus on the psychological aftermath of a cold case provides a thematic anchor for the more violent elements of the plot.