In the sultry heat of summer, Grace, Eve's younger sister, finds herself entangled in a forbidden web of desire. As the two sisters share a room, Grace can't help but notice Eve's growing curiosity about her own body, and the tension between them builds. One evening, as Eve showers, Grace sneaks a peek at her sister's petite frame, her heart pounding with a mix of sisterly love and unexpected lust. The next day, they find themselves alone in the house, and the boundaries of their sisterly bond begin to blur as they explore each other's bodies, their soft moans filling the air as they give in to their taboo desires.