Outwardly appearing to be a peaceful mothers' social circle, it was in fact a gathering of women who enjoyed affairs during the day while their husbands were away on work assignments. Yamamoto Mama (25), suspecting her husband of cheating, opens herself emotionally and begins a relationship with another man. Meanwhile, Kurita Mama (31), whose marriage has grown cold, gives in to alcohol-fueled desire, aggressively pursuing men and indulging in creampie sex. Yui Mama (34), the group's leader, also turns to men out of loneliness, passionately entwining with one like lovers and reaching climax repeatedly. As their individual emotions and desires intertwine, hidden lusts explode in a dramatic confrontation.