Yoo-lim, who divorced her husband and was preparing for a new start, learns that her daughter, Eun-ah, got raped by boys at school. However, they will not be punished because they are minors. Eun-ah kills herself, and Yoo-lim seeks revenge.

Struggling to support herself and teenage daughter, a widow rents out the second floor of her home to a man who claims to be a novelist working on a new book.