When a Nazi submarine is discovered lying in sixty feet of water off the Louisiana coast some troubled ghosts are ready to be released. A local businessman is offering Detective Dave Robicheaux big money to bring the wreck to the surface but he is not the only one after the submarine & its mysterious cargo. Neo-Nazis are on the march in New Orleans a new spirit of hatred is abroad & its terrifying embodiment an icy psychopath called Will Buchalter is stalking Robicheaux's wife. Robicheaux is about to find out how deep the new current of evil runs
- & just how far the crazed Buchalter will go to get his hands on the Nazis' legacy.