Though they have money and time, their hearts and bodies remain unfulfilled, trapped in monotonous routines. Seeking a spark of excitement, four women plan a hot spring getaway. As they soak in the baths and warmth spreads through their bodies, the sensation of being carefully massaged with oil awakens sensitive areas. The heat of the springs heightens their arousal naturally, drawing them inevitably toward the massage therapist's room. They can't afford to indulge late into the night!