While on an investigation into a series of grisly murders, veteran detective Dave Robicheaux navigates his way through the Louisiana bayou and the dark, sultry world of New Orleans mobster 'Baby Feet' Balboni. Layers of corruption and long-dead secrets reawaken grudges and a lethal alliance.

Marie de Mezieres is deeply in love with her dashing cousin Henri de Guise. However, due to her father's political ambitions, she is forced into a marriage with the well-connected Philippe de Montpensier, who she has never met. When Philippe is called away to fight, she is left in the care of Count Chabannes, an aging nobleman. It isn't long before she is exposed to the sexual and political intrigues of court.