Hisako Ōuchi (Naomi Tani) is the sexually-frustrated wife of the older art academy Professor Ōuchi (Minoru Ōkochi). Ōuchi is a repressed conservative who disdains modern art, and expels Kazuo Kobayashi (Tachiki Bessho), a student who specializes in SM painting. Hisako becomes obsessed with the expelled student, and has an affair with him. Kazuo and Hisako retire to a cabin in the countryside where they indulge in SM activities.