Curse of the Fly

Curse of the Fly is the second and final sequel to the 1958 version of The Fly. It was released in 1965, and unlike the other films in the series was produced in England. The film was directed by Don Sharp and the screenplay was written by Harry Spalding.

Martin Delambre Baker is driving to Montreal one night when he sees a young girl by the name of Patricia Stanley Gray running in her underwear. They fall in love and are soon married. However, they both hold secrets she has recently escaped from a mental asylum he and his father Henri Donlevy are engaged in radical experiments in teleportation, and they have already had horrific consequences. Martin also suffers recessive fly genes which cause him to age rapidly and he needs a serum to keep him young.In a rambling mansion in rural Quebec, Martin and Henri have successfully teleported people between there and London. However, previous failures resulted horribly disfigured and insane victims who are locked in the stables. Martins first wife is one of them, as are Samuels and Dale, two men who had worked as the Delambres assistants. Martins brother Albert Graham mans the London receiving station but wishes to terminate the teleportation project and escape the obsession that has driven his grandfather, his father and his brother. ........

Source: Wikipedia