The Human Vapor

The Human Vapor 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). Yoshio Tsuchiya stars as the titular character, a man transformed into a gaseous being after a scientific experiment goes awry. Kaoru Yachigusa, Tatsuya Mihashi, and Keiko Sata appear in supporting roles. The story follows the vaporous antihero as he exploits his newfound powers to commit bank robberies, using the proceeds to finance the dancing career of his lover, Fujichiyo (Yachigusa), while evading Detective Okamoto (Mihashi) and facing his powers' moral toll.