Kogoro Akechi solves the mystery of the invisible culprit and the invisible weapon.
Kinya Kitaoji
Kogoro Akechi
Mari Sato
Bunyo
Jiro Sakagami
Inspector Namikoshi
Mari Shirato
Miyako Aoki
Hiroshi Arikawa
Shigeru Sekiya
Joe Shishido
Takeo Sato
Kazuko Yoshiyuki
Shizuko Aoki
