A young man hospitalized in a traffic accident is drawn to a small building outside the hospital window and observes that family's life through binoculars. Late one night, he seems to witness the beautiful girl of that family murder her father, and the next night, she mysteriously appears at the construction site next to the hospital. Is she burying the body? What kind of secret does she have? To find out the truth, after being discharged from the hospital, he starts to follow the girl, only to fall in love with her, and he gets further and further away from the truth...