Police investigate a series of mysterious murders where the only clue is a strange buzzing noise at the scene of the crime.
Yoshirō KitaharaChief Inspector Wakabayashi
Junko KanoAkiko Hayakawa
Ryūji ShinagawaDr. Tsukioka / The Invisible Man
Ikuko MōriMieko
Jōji TsurumiSugimoto
Yoshihiro HamaguchiDetective Hayama
Shōzō NanbuDr. Hayakawa
Bontarō MiakeChief of the Metropolitan Police
Ichirō IzawaKôkichi Kusunoki / The Human Fly II
Shizuo ChūjōYamada / The Human Fly I
Koh SugitaHajima
Tatsuo HanabuDirector Tada
Fujio HarumotoKōichi ItōTeppei EndōDoctor
Junko KanoAkiko HayakawaRyūji ShinagawaDr. Tsukioka / The Invisible ManIkuko MōriMiekoJōji TsurumiSugimotoYoshihiro HamaguchiDetective HayamaShōzō NanbuDr. HayakawaBontarō MiakeChief of the Metropolitan PoliceIchirō IzawaKôkichi Kusunoki / The Human Fly IIShizuo ChūjōYamada / The Human Fly IKoh SugitaHajimaTatsuo HanabuDirector TadaFujio HarumotoKōichi ItōTeppei EndōDoctor
