This is the third and final book in the Spirit of Grace series, in which a beat cop, Grace Halling, tries to keep her city safe, hunt a serial killer, and give attention to her budding romance with the police chaplain, Amya. Deputy Grace is back patrolling, and after a few months of quiet, murders of her comrades in blue begin again. Scared and determined, Grace follows every lead she can until she finds herself face to face with the barrel of a gun, only this time her finger is on the trigger.