Director Soo-youn Lee's supernatural horror in which a man is haunted by the deaths of two children. While riding on the underground late one night, interior designer Jeong-won (Shin-yang Park) falls asleep and wakes to find himself at the end of the line. As he hurriedly leaves the train, he notices two children still on board. The next day, he's saddened to learn of their deaths, apparently at the hands of their mother. Now, as he sits at the new dining table his fiancée has purchased for their apartment, his world is suddenly turned upside down, when, looking across, he sees the two dead girls slumped across the table. After seeking help from a psychiatrist, he strikes up a relationship with one of the doctor's patients, mysterious narcoleptic Yeon (Gianna Jun), who, apart from holding Jeong-won in her grasp, is also able to see the children's ghosts.