Yuna and her husband moved to a larger apartment after their lives stabilized. Just as they were trying to build good relationships with their neighbors, the other housewives in the same apartment building took notice of their affectionate interactions. Yuna, the wife, started getting snide remarks from them as they passed each other, and gradually, the harassment escalated. Feeling at her wit's end, Yuna stumbled upon a revenge website and became fixated on it. To get back at the woman she despises, Yuna uses her seductive smile to approach the neighboring husband...