When a cloaked, disfigured man leaves a dead woman in a garbage bag on Dave Robicheaux’s property, he knows his world and family are about to change. With Valerie Benoit, a detective new to the Iberia Parish Sheriff's Department who is grappling with sexist and racist harassment from their colleagues, and the volatile but fiercely loyal Clete Purcel, Dave embarks on an investigation that brings him into the most dangerous moments of his career and threatens the lives of Valerie and his daughter, Alafair. He encounters a local handyman who leaves cryptic notes and warns of the ghosts who roam the shores of the bayou and is targeted by a vicious New Orleans button man and gangsters from the north.