In the heart of 1920s New Orleans, where jazz fills the air and secrets lurk in every shadow, Leda Laveau is a voodoo princess as mysterious and vibrant as the city itself. Known for her unique power and a wardrobe of resplendent purple, she holds the keys to ancient magic and hidden truths.

When a troubled woman seeks her help, Leda is drawn into the dark world of Jean-Luc, a soldier haunted not by the war he fought, but by a chilling curse he brought home. Afflicted with the terrifying power of the rougarou-a Cajun werewolf-Jean-Luc is a prisoner in his own body, a beast lurking beneath the surface of the man his wife loves.

As Leda delves into the murky secrets of the bayou, she must confront the beast that defies all logic. With time running out, she and Jean-Luc's wife must race against the moon to save him from a fate worse than death. Will Leda's magic be enough to break the curse, or will they be too late?