A one-time teen detective in Brooklyn, she is a follower of the esoteric French detective Jacques Silette, whose mysterious handbook Détection inspired Claire’s unusual practices. Claire also has deep roots in New Orleans, where she was mentored by Silette’s student the brilliant Constance Darling—until Darling was murdered. When a respected DA goes missing she returns to the hurricane-ravaged city to find out why.

    But when it comes to murder, Officer Susan Marlan never trusts a simple explanation, so she's just getting started.Meanwhile, college professor Eric Evans hallucinates a young boy in overalls: a symptom of his schizophrenia - or so he thinks. But when more bodies turn up, Eric has more visions, and they mirror details of the murder case. As the investigation continues, the police stick with their original conclusion, but Susan's instincts tell her something is off. The higher-ups keep stonewalling her, and the FBI's closing in.Desperate for answers, Susan goes rogue and turns to Eric for help. Together they take an unorthodox approach to the case as the evidence keeps getting stranger. With Eric's hallucinations intensifying and the body count rising, can the pair separate truth from illusion long enough to catch a monster?