In a secluded rural hot spring town, rumors of infidelity spread quickly. At a massage parlor where married women work, more and more find themselves reaching the limits of their sexless marriages. A man from the city arrives, skillfully using the tense atmosphere and intoxicating scents to manipulate the emotions of these married women with suggestive words. Three minutes into the massage, sensing an abnormally high body temperature, he becomes certain that the woman's heart and body have opened to him. Exchanging lewd words, he seduces her—her token resistance only heightening the erotic tension, leading inevitably to intense, passionate sex. Emotions intertwine with the charged atmosphere, igniting a hidden passion that erupts uncontrollably.