Mysterious incident at a secret factory! Important documents lost! What is the true identity of the enemy's invisible spy?

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Main Cast: Teruyo Asagumo, Chieko Sōma, Hikaru Hoshi, Kumeko Urabe, Tatsuya Ishiguro, Kanji Koshiba, Kōichi Mizuhara, Keiju Kobayashi, Hiroshi Ueda, Ippei Torihashi

Director: Hiroyuki Yamamoto

Writer: Yoshio Ishida

Editor: Masanori Tsujii

Cinematographer: Shin'ichi Nagai

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