Shoko, a housewife living in public housing and struggling with sexlessness in her marriage, finds herself caught by her middle-aged neighbor Nakata while masturbating. Later, when Nakata comes to apologize, she feels reassured by his sincerity and begins learning 'poses useful for marital nights' from him, as he aspires to be a yoga instructor. The two, who were never supposed to get involved, end up in a sweaty, intense affair...
