The secret of a married massage therapist working in a hot spring town is exposed. A woman in her early 30s who moved here two years ago with her husband, tired of city life. She claims to have lost interest in sex, hasn't had it for over a year, and even says she's "bored" with it—but when seduced by a city man, her barriers crumble. The sweet flavor hidden within the married woman's depths proves exceptionally exquisite. The massage therapist, in her late 30s, begins developing curiosity toward younger men other than her husband. Her face gradually emerges into view as their nighttime encounters evolve into something new. In the hot spring resort where rumors have spread, hidden camera footage captures the deepening relationship between the two.