On arrival in Haiti, Madeleine Short reunites with her fiancé Neil Parker, with imminent plans to be married. On the way to their lodging, the couple's coach passes Murder Legendre, an evil voodoo master, who observes them with interest. Neil and Madeleine arrive at the home of the wealthy plantation owner, Charles Beaumont. Charles' love of Madeleine prompts him to meet Murder secretly in Murder's sugar cane mill, operated entirely by zombies. Charles wants to convince Madeleine to marry him and solicits Murder's supernatural assistance. Murder states that the only way to help Charles is to transform Madeleine into a zombie with a potion. Beaumont agrees, takes the potion, and surreptitiously gives it to Madeleine. Shortly after Madeleine and Neil's wedding ceremony, the potion takes effect on Madeleine, who soon dies and is buried. Murder and Charles enter Madeleine's tomb at night and bring her back to life as a zombie. In a drunken state, a depressed Neil sees ghostly apparitions of Madeleine and goes to her tomb. On finding it empty, Neil seeks out the assistance of the local missionary, Dr. Bruner, who recounts how Murder turned many of his rivals into zombies, who now act as Murder's closest guardians. The two men journey to Murder's cliffside castle to rescue Madeleine.