With a serial killer loose on Carnival Row, and a government that turns a blind eye to the deaths of its lower class citizens, Rycroft Philostrate, a war-hardened investigator, is the only person willing to stop the murders and maintain the fragile peace. But when Vignette Stonemoss, a faerie refugee, turns up in the Burgue, she forces Philo to reckon with a past he’s tried to forget.