If you liked this movie, you should also see: Persona (1966)Memories of Murder (2003)Diabolique (1955)High and Low (1963)Rashomon (1950)
Jong-su bumps into a girl who used to live in the same neighborhood, who asks him to look after her cat while she's on a trip to Africa. When back, she introduces Ben, a mysterious guy she met there, who confesses his secret hobby.