Packaged in the States with director Honda's 1964 feature Gorath, this sci-fi film tells the story of an ex-con who has undergone a substantial change on account of a scientific experiment. He is now able, at will, to transform himself into vapor. When his girlfiend is accused of theft, the Vapor Man leads the police to believe he is the perpetrator--and then continues to commit more crimes. The authorities use his girlfriend to intitiate a fool-proof plan to destroy the gaseous guy. Honda's frequent collaborator, Eiji Tsuburaya, is responsible for the first-rate special effects. ~ Kristie Hassen, All Movie Guide