Pinku from 1972.

A lesbian couple-swapping party where you can see the excitement of lesbians peeking in!

A salaryman husband is paralyzed and bedridden after a traffic accident, and his wife starts a small bar to make ends meet while nursing him back to health. The wife succumbs to carnal desires, and her husband secretly watches their affair from the next room. Madness and ecstasy. A representative work from the pink film era of Shohei Yamamoto, famous for his villainous roles. .