David "Al" Hedison plays poor Andre Delambre, a scientist that loves his work and his family. Andre has created a "Matter Transfer" machine that has great possibilities in helping the world. Only his wife, Helene knows about his work and that knowledge will give her the scare of her life. As with most scientists in movies, Andre decides to experiment on himself which turns out to be the biggest and last mistake in his life. Unbeknown to Andre, a little housefly has flown into the same chamber when he transports himself. The atoms of his body mix with the fly and Andre no longer is the same man that Helene married. A fly-man has been developed. Andre ends up with a fly head and arm. Vincent Price is Andre's brother Francois that has no idea of what causes his sister-in-law to crush or apparently crush his brother's head and arm. Francois must find out the truth, the incredible truth. Can Francois change Andre back into a whole man again? Will Helene be executed for the murder of her husband? Just why does a little housefly with a white head play such a big role in the movie? The ending is one of the really classic scenes that leaves you wondering why spiders exist? Can a spider save the Delambre family? Watch and enjoy.
