When Chi-Hyon takes home her young sister, Su Hyon, a terminal cancer patient, so that she can help her enjoy her remaining time on earth, she buys her a wig to mask the effects of chemotherapy -- not realizing that the wig is, in fact, demonic. Once in possession of the wicked hairpiece, Su Hyon begins committing all sorts of transgressions, including causing Chi-Hyon to have a car accident and trying to seduce her boyfriend.
With the help of his family and a coach, an autistic man trains and competes in a lengthy marathon. The young man had always dreamed of competing in an event like that.
Seo-rin learns that life can be cruel when she is abandoned by her mother in a movie theater as a child. She grows up on the streets and eventually meets the insomniac Jeong-il and is charmed by his innocence. Although their initial encounter is brief, it launches them on a quest for love and a search for each other
