Nonstop swapping communal life from morning to night. Two real couples experience their first partner exchange, engaging in relentless sex around the clock. Their wild relationship escalates so intensely that they ignore complaints from neighbors. The first couple met through pickup and recently married after a pregnancy. The husband becomes aroused at the thought of watching his wife being taken, fueling his own desire. The second couple are middle-aged, having married after an affair at work. The wife suffers from frigidity, so they joined seeking stimulation—but things take an unexpected turn as she becomes completely captivated by her swapping partner's skill. With her voluptuous, alluring body, she pleads, "Torture me, torment me!" losing herself in her own special pleasure. The story unfolds with each couple's unique romantic background and the new dynamics born through swapping.