The Chaser (Korean: ???) is a 2008 South Korean action thriller film starring Kim Yoon-seok and Ha Jung-woo. It was directed by Na Hong-jin in his directorial debut. Inspired by real-life Korean serial killer Yoo Young-chul certain scenes were shot on location around Mangwon-dong in the Mapo District Seoul. Joong-ho is a dishonest ex-detective turned pimp who is in financial trouble because two of his prostitutes have gone missing. One night he commands Mi-jin to service a customer despite her protests over her sickness. Joong-ho then realizes this customer was the last to see his missing girls. Believing that this customer is trafficking his women Joong-ho nevertheless sends Mi-jin in so that she can forward the customer's address to him. Joong-ho contacts his old police task force for help but they cannot assist because the mayor of Seoul whom they were guarding has been attacked with feces; this results in the police suffering a media firestorm.