While on vacation in New Orleans, Jack Slade is approached by a young woman whose family holds a dark secret. She asks Slade to prevent her cousin, a powerful vampire, from succeeding in his bid to take control of the world. Slade takes the job and follows a trail of blood that leads him into the dark world of Voodoo where he battles murderous zombies and the vampire’s henchmen. In the brooding, snake and alligator infested swamp around Lake Pontchartrain, Slade has his final confrontation with the vampire himself in a fight to the death.