Hitozuma maru-ura tôsatsu: Haitoku no jôkô

人妻(裏)盗撮　背徳の情交 (original title)

Synopsis

Reiji, a young man who single-handedly runs an electrical shop inherited from his parents, has a hobby of secretly installing small cameras while repairing appliances and spying on other people's private lives. He then sells the footage to illegal businesses. One day, Reiji falls in love at first sight with Yoko, a married woman who comes in to change a light bulb.