Fiend Without a Face

A British scientist, who is experimenting with telekinetic, enhanced by power from nuclear experiments at an American airbase in Canada, succeeds in creating a new form of life. This new creature grows in intelligence until it finally escapes his laboratory. Once outside the lab, and closer to its nuclear power source it multiplies. The creature is also invisible, so no one knows what it looks like.
The airbase provokes resentment amongst the nearby residents after fallout from the nuclear experiments at the base are blamed for a recent spate of disappearances. A captain from the airbase is assigned to investigate, and begins to suspect that the scientist knows more than he is letting on about the unseen killer.