Aya, a married woman worn out by the monotony of daily life. One day, on her way home from shopping, she notices a flyer for "in-home massage" posted on a utility pole, and decides to book a session, hoping to relieve her everyday fatigue. At first, it's just a normal massage, but gradually the therapist begins stimulating sensitive areas of her body, drawing her in deeper. Overcome by pent-up desire, she loses all sense of time and becomes completely absorbed in the erotic massage.