American sci-fi horror. Dr. Paul Talbot (Phillip Terry) is astonished when a mysterious, old African woman named Malla (Estelle Hemsley) promises to show him the secret of eternal youth. With his estranged wife June (Coleen Gray) under the pretence they're going on a safari, Paul follows Malla back to Africa and brings his ageing wife along in the hope of restoring her former beauty. After discovering the truth, June flees back to America with the secrets of staying young and beautiful. But she soon adopts a murderous habit in order to preserve her secret...