 While there he unexpectedly encounters a voodoo cult, whose leader intends to take over the world with an army of zombies.Adventure novelist and playboy Tom Harris (Joyce) is sent from Miami Beach to remote Voodoo Island in the Caribbean to gather material for a new book.Harris's publisher Duncan Fairchild (Dan Stapleton) and Fairchild's wife Coral (Betty Hyatt Linton) accompany him.