One of those Korean director Kim Ki-duk's mannerist-minimalist films in which his raw brutality outweighs his workmanship. Basically, the plot has the title's Bad Guy (a brutal street pimp, actually), that is attracted to a pretty college girl sitting on a bench in a park. But college girl is not attracted to Bad Guy, who, by the way, never talks in the whole movie. And college girl has already a boyfriend. So, through a complicated scheme, Bad Guy is able to have her work in his brothel. Poor college girl is now a prostitute. But Bad Guy continues to be infatuated with her, and sees her work through a one way mirror. And this infatuation will let college girl eventually get the upper hand and (sort of) get even. Not exactly a bad film, but neither one of Kim's better films, who has done better than this (see instead Spring, Summer, Autumn... or 3-Iron).
