Jewel thieves become interested in an invisibility formula invented by Professor Nakazato and want to use his invention to acquire a diamond necklace called the "Tears of Amour."
Chizuru Kitagawa
Machiko Nakazato
Takiko Mizunoe
Ryûko Mizuki
Daijirō Natsukawa
Kyôsuke Segi
Mitsusaburō Ramon
Inspector Matsubara
Ryūnosuke Tsukigata
Kenzô Nakazato
Shōsaku Sugiyama
Ichirô Kawabe