Ryokichi Ibuki is a clerk who learns company "top secrets" and becomes an industrial blackmailer. Kaoru Koizumi, a confidential secretary in love with Ibuki, reveals her firm's plans to him. She resigns when Ibuki blackmails her employer but Ibuki gains another spy in Ayuko Ichinoi...

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Main Cast: Jirō Tamiya, Yukiko Fuji, Hideo Takamatsu, Bontarō Miake, Kyū Sazanka, Yūko Hamada, Yuko Yashio, Mayumi Kurata, Rieko Sumi

Director: Shigeo Tanaka

Writer: Kozo Taguchi

Editor: Tatsuji Nakashizu

Cinematographer: Michio Takahashi

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