Tetsu no tsume(鉄の爪,Tetsu no tsume) (Claws of Steel) is a 1951 black-and-white Japanese horror film (J-Horror) directed by Shinsei Adachi for Daiei Films. It was shot in Black and White, Academy ratio full-screen, and was never dubbed in English. The film was never shown in the US, and was only available on laserdisc in Japan. The writer/director Shinsei Adachi is referred to on imdb as "Nobuo" Adachi.
A meek church worker who was once bitten by an ape on a jungle island in WW2 begins to transform into a beast-man whenever he drinks alcohol. He develops a split personality like Jekyll & Hyde, one half adoring a virginal church organist, the other lusting after an immoral showgirl. A friend puts him into his nightclub act, showcasing his weird ability to transform from man to beast so effectively. At the climax, the man reverts entirely to bestial and wrecks a nightclub, taking a pretty showgirl hostage.