After a routine job, Ashaf and Guideau have a run-in with a berserk "undead"—a deceased human being restored to life through the art of necromancy. Though the city strictly regulates the practice, these aberrant cases have only been growing in number. In his stead, Ashaf recommends his colleague Phanora and her assistant Johan, though the pair is as much a mystery as the one they intend to solve...