A Korean woman leaves her two young daughters with her sister-in-law to search for their estranged father.

A couple is set in their monotonous life until the husband has a homosexual affair with a young male prostitute. Suspicious of her husband, the wife seeks the truth and eventually ends up in bed with the same young man. Their desire has a new meaning.

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

S is a suicide designer who assists people to commit suicide according to a method of their own choosing. When a woman kills herself, her boyfriend decides to investigate, and discovers that S is behind the suicide...