A Bittersweet Life (2005)
Kim Sun-woo is an enforcer and manager for a hotel owned by a cold, calculative crime boss, Kang who assigns Sun-Woo to a simple errand while he is away on a business trip; to shadow his young mistress, Heesoo, for fear that she may be cheating on him with a younger man with the mandate that he must kill them both if he discovers their affair.
Country: South Korea
Directors: Kim Jee-woon
Casts: Lee Byung-hun as Sun-woo, Shin Min-a as Hee-soo, Kim Yeong-cheol as Mr. Kang, Hwang Jung-min as President Baek, Kim Roe-ha as Mun-suk, Oh Dal-su as Myung-gu, Jin Goo as Min-gi, Lee Ki-young as Mu-sung (uncredited), Kim Hae-gon as Tae-woong (uncredited), Eric Mun as Tae-goo [Gun dealer's brother] (uncredited), Kim Han as Se-yoon (uncredited), Kim Sung-oh as Oh Moo-seong [Employee for boss] (uncredited), Jeon Kuk-hwan as Chairman Baek (uncredited), Jung Yu-mi as Mi-ae (uncredited), Kwak Min-ho as Male Lounge Employee (uncredited)