Girlfriend (2018)

Juyeop lives off part-time jobs. One day, Miseon, who closely resembles his ideal type, moves into the apartment below his. Juyeop gradually begins to secretly watch Miseon, seeing her as an object of his desire. Eventually, while spying on Miseon's home using a small camera, Juyeop makes eye contact with her as she engages in passionate lovemaking with her boyfriend...