Apartment Wife: Lust for an Orgasm (1979)
After her husband lets his boss screw her for a promotion, a wife begins an affair with a motorcycle gang member.
Actors: Masato Furuoya
Wakarenu Riyuu (1987) aka Reason for Not Parting
A film about a surgeon and his wife who become aware of each other’s affair but still do not break up despite various emotional challenges.
Play it, Boogie-Woogie (1981)
When a chick’s live-in boyfriend suggests that she should prostitute herself so that she can earn more money than her bartending salary, she gets offended and cheats on him with an older man.
Village of Doom
An emotionally distraught young man goes on a violent killing spree after his tuberculosis keeps him from serving in World War II and is frowned upon by his fellow villagers.