A superbly crafted film by innovative director Siegel, this low-budget science fiction tale became one of the great cult classics of the genre.
Miles (McCarthy), a doctor from the small town of Santa Mira, arrives in San Francisco in hysterical condition; he raves that his community has been invaded by aliens who have literally taken over the bodies of his friends and relatives. He's a candidate for the lunatic asylum, most agree, but
they hear him out, and the story unfolds in flashback. Miles has returned home from a medical convention to find that many people have been complaining that their loved ones somehow don't appear to be the same people as before. He ...