Some years later, Susan Vanard (Regina Carrol), the mad scientist's daughter, tells the police she's been getting psychic messages from someone in her sleep, speaking about Haiti and voodoo. A weird doctor named Elton Corey (Kent Taylor) has returned from Haiti, bringing with him a murderous zombie named Akro, and has set out to avenge the death of his psychotic son Joe Corey on anyone who was in any way involved with the late Dr. Vanard. Akro the zombie (who for some reason has only one eye) strangles a number of people in alleys as the film proceeds, although his manner of choosing his victims seems to be totally random. Sgt. Cross (Tommy Kirk) however has been investigating the recent spate of murders and feels they are related to the now-closed Joe Corey case, and he questions Susan Vanard about her late father and his connection to what happened to Joe Corey.