Her name may or may not have been Ida Durbin. It was back in the innocent days of the 1950s when Robicheaux and his brother, Jimmie, met her on a Galveston beach. She was pretty and Jimmie fell for her hard--not knowing she was a prostitute on infamous Post Office Street, with ties to the mob. Then Ida was abducted and never seen again. Now, decades later, Robicheaux is asking questions about Ida Durbin, and a couple of redneck deputy sheriffs make it clear that asking questions is a dangerous game. With a series of horrifying murders and the sudden appearance of Valentine Chalons and his sister, Robicheaux is soon involved with the murderous energies of the New Orleans underworld.