Husband keeps a young lover and continues cheating. Once, she accepted their cold, loveless sex as a wife's duty, but as her husband stops coming home, loneliness and sexual desire drive her to fantasize about a shameful relationship with her son, masturbating to suppress these urges. Yet, unsatisfied by the emptiness of self-pleasure, the mother approaches her sleeping son, clings to his body, and falls into forbidden, taboo intercourse.