Return of the Fly

Return of the Fly is the first sequel to the 1958 horror film The Fly. It was released in 1959, and directed by Edward Bernds. Unlike the preceding film, Return of the Fly was shot in black and white. The film was followed by another sequel in 1965, Curse of the Fly.

Phillipe Delambre Brett Halsey is determined to vindicate his father by successfully completing the experiment he had worked on. His uncle Francois Vincent Price refuses to help. Phillipe hires Alan Hines from Delambre Frere and uses his own finances, but the funds run out before the equipment is complete. When Phillipe threatens to sell his half of Delambre Frere, Francois relents and funds the completion. After some adjustments, they use the transporter to store and later rematerialize test animals.Alan Hines turns out to be Ronald Holmes, an industrial spy. Holmes tries to sell the secrets to a shadowy cohort named Max. Before Holmes can get away with the papers, a British agent confronts him. Holmes knocks him 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 puts the dead agent in his car, which he sends into the Saint Lawrence River. ........

Source: Wikipedia