Detective Inspector Sean Corrigan must track a methodical, untraceable killer while struggling to contain the violent impulses born from his own traumatic past. Corrigan utilizes his unique, albeit unsettling, psychological insight to connect a series of seemingly unrelated murders that have baffled his colleagues in the South London Murder Investigation Unit. As he closes in on a predator who leaves no forensic trail, the investigation forces Corrigan to confront the fragility of his own domestic stability. The narrative follows a tense, linear progression, alternating between the clinical demands of police work and the internal pressure of a man fighting to keep his own darkness suppressed.

This debut novel is frequently noted for its gritty realism, a quality attributed to the author's background as a former Metropolitan Police detective. Readers often highlight the psychological depth of the protagonist, noting that his internal struggle adds a layer of complexity beyond standard police procedurals. The pacing is generally described as relentless, keeping the focus tightly on the investigation while maintaining a sense of impending danger. The book is often compared to the works of established British crime writers, appealing to those who prefer a darker, more visceral approach to the genre. The narrative successfully balances the technical aspects of police work with the intense, personal stakes of the lead character.