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, Hee-soo, 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.

Genres: Action, Drama, Crime

What to watch after A Bittersweet Life

• Sympathy for Mr. Vengeance (2002) — Same subject: revenge
• No Other Choice (2025) — Lee Byung-hun appears in both
• I Saw the Devil (2010) — Kim Jee-woon directed both
• The Chaser (2008) — Two steps away in the credits
• Failan (2001)
• A Tale of Two Sisters (2003) — Kim Jee-woon directed both