A series of ghastly murders are being committed. The one similarity in each of the murders is that a strange buzzing sound is always heard right before the murder occurs. Is the killer invisible or possibly some other incredible creature?

Credits

Mitsuo MurayamaDirector

Yoshirō KitaharaChief Inspector Wakabayashi

Junko KanoAkiko Hayakawa

Ryūji ShinagawaDr. Tsukioka / The Invisible Man

Ikuko MōriMieko