A story of hidden desires unfolding in a house empty of family. One day, a son returns home to retrieve something he forgot and accidentally discovers his mother holding a pornographic magazine she was secretly reading. Her appearance is shockingly lewd, leaving him both stunned and aroused. From that moment on, he becomes obsessed with her behavior, sneaking into the house frequently to spy on her. His actions grow bolder over time. He witnesses her flirting with various visitors—couriers, air-conditioning repairmen—and eventually catches her in the act of cheating. The house, free from family interference, becomes a private space that deepens their twisted connection. A tense, unsettling daily life unfolds, where secrecy and impulse collide.