Happy Killers

Happy Killers
Theatrical poster
Directed by	Kim Dong-wook
Produced by	Kim Hyun-shin Eo Ji-yeon
Written by	Kim Dong-wook
Based on	Happy Killers by Seo Mi-ae
Starring	Kim Dong-wook Yu Oh-seong Shim Eun-kyung
Music by	Lee Hyeong-ju Gang Hak-seon
Cinematography	Lee Ki-won
Edited by	Kim Chang-ju Steve M. Choe
Distributed by	Lotte Entertainment
Release date	8 April 2010 (2010-04-08)
Running time	107 minutes
Country	South Korea
Language	Korean
Box office	US$3,799,385

Happy Killers (Hangul: 반가운 살인자; RR: Bangaun Sarinja) is a 2010 South Korean comedy-thriller film. It was adapted from a mystery short story of the same title written by Seo Mi-ae in 2005.

Jung-min is the new detective assigned to a neighborhood where a serial killer commits murder every rainy Thursday. Laidback and blundering at his job, Jung-min is actually secretly studying for a civil servant exam to get away from his boss who's always picking on him. Every day, residents protest outside the police station, shouting that the police should make up for the falling apartment prices and catch the murderer. To make matters worse, Jung-min's mother who happens to be the president of the women's association is leading the protest. He vows to catch the killer this time in order to save his dignity as a detective and a son. However, his elaborate plans are upset by the appearance of Young-seok, the neighborhood unemployed bum. Because of the reward for the killer's capture, Young-seok is trying to catch him well, and his natural detective skills lead him to always arrive at the crime scene one step ahead of the police. Furthermore, he criticizes every little thing that Jung-min does and is a royal pain in the neck. Jung-min absolutely cannot let Young-seok solve the case and take away his chance of a lifetime, so a rivalry forms between the two as they both race to catch the killer.

Shim Eun-kyung received Best New Actress nominations at the 47th Grand Bell Awards in 2010 and the 47th Baeksang Arts Awards in 2011.