A young wife (Gloria Talbot) discovers an alien has taken over the body of her husband (Tom Tryon) and soon realises that he may not be the only possessed man in the town. Perhaps best known for being better than its tabloid title, 'IMAMFOS' is a pretty good sci-fi shocker. One of a number of 'aliens need men/women to repopulate their dying world' films, 'IMAMFOS', while a budget concoction, is nicely filmed with good acting (especially Gloria Talbot), limited but effective special effects, and an excellent, oozy finale. Like most 'take over the body' movies, the physics/biology of the process is never explained but the black cloud absorbing the to-be-copied victim adds a nice visual touch. Despite a number of plot holes and inexplicable events (primarily with respect to the copying), the film is a well-made, clever, and entertaining example of the 'paranoid 50's' canon of 'fifth-column' sci-fi thrillers.