A doctor returns to his small-town clinic only to discover small and strange changes happening to the residents. What follows is a frighting thriller in which aliens take over human bodies by inert duplicates hatched from pods. Against the backdrop of the Cold War, the 1950s’ Hollywood presented countless cheap horror and sci-fi productions - Invasion of the Body Snatchers is one of the best of them. It is an anti-McCarthyist parable that presents its viewers with a reality of conformism. Siegel designs this as a lean and effective thriller. The result is this classic.