This horror movie, the third and final entry in "The Fly" series, features a failed teleportation device, a mad scientist, a fugitive from a looney bin, and a closet full of mutants. The trouble begins again after a young woman escapes from a mental institution and ends up at the home of the Delambre family. There she finds the family leader continuing his experiments in using a machine to teleport people from one place to another. She also finds his handsome son whom she marries. After she discovers a closet filled with failed teleportation experiments, the police are notified. The crazed scientist tries to use his machine. Again it fails and all that remains of the mad inventor is a gooey blob.
by Sandra Brennan synopsis