Police investigate a series of mysterious murders where the only clue is a strange buzzing noise at the scene of the crime.
Yoshirō Kitahara
Chief Inspector Wakabayashi
Junko Kano
Akiko Hayakawa
Ryūji Shinagawa
Dr. Tsukioka / The Invisible Man
Ikuko Mōri
Mieko
Jōji Tsurumi
Sugimoto
Yoshihiro Hamaguchi
Detective Hayama
Shōzō Nanbu
Dr. Hayakawa
Bontarō Miake
Chief of the Metropolitan Police
