Human Vapor

The Human Vapor (ガス人間第一号, Gasu Ningen Daiichigō; lit. 'The First Gas Man') is a 1960 Japanese science fiction thriller film directed by Ishirō Honda, with special effects by Eiji Tsuburaya. Produced and distributed by Toho, it is the third and final film in the Transforming Human Series, after The H-Man (1958) and The Secret of the Telegian (1960).