Return of the Fly 1959

After Hélène Delambre dies, her son Phillipe Delambre, Brett Halsey, is determined to vindicate his father by finishing the experiment he had worked on. His uncle François Delambre, Vincent Price, initially refuses to help, so Phillipe hires Alan Hinds, David Frankham, from Delambre Frere and uses his own finances. But the funds run dry before the equipment is complete. When Phillipe threatens to sell his half of Delambre Frere, François relents and funds the completion. After some adjustments, they use the transporter to “store” a subject and later re-materialize it, starting with test animals.

Alan Hinds turns out to be Ronald Holmes, David Frankham — an industrial spy. Holmes tries to sell the secrets to a shadowy cohort named Max, Dan Seymour. Before Holmes can slip away, a British agent confronts him. Holmes knocks the agent out and uses the transporter to “store” the body. When rematerialized, the agent has the paws of a guinea pig that had been disintegrated earlier, and the guinea pig has human hands. Holmes kills the rodent and places the dead agent in his car, which he then ferries into the Saint Lawrence River.

Phillipe confronts Holmes about all the oddities, and a fierce struggle ensues, leaving Phillipe unconscious. Holmes hides Phillipe the same way he did the agent, but in a sadistic twist he catches a fly and adds it to the transporter with him. François re-materializes Phillipe, but the man emerges with a giant fly head, arm, and leg, while the tiny fly carries Phillipe’s head, arm, and leg. The fly-headed Phillipe runs into the night, tracking down and killing Max. He waits for Holmes to arrive and kills him as well, then returns home, where Inspector Beauchamp, John Sutton, has found and captured the Phillipe-headed fly. Both are placed in the device together and re-integrated, restoring Phillipe to his normal human form.