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.
Is A Bittersweet Life on Netflix? Yes! The movie A Bittersweet Life is now on Netflix in the countries listed below.
| Camera | Kim Ji-yong | Director of Photography |
| Production | Oh Jung-wan | Producer |
| Sound | Dalpalan | Original Music Composer |
| Art | Ryu Seong-hie | Production Design |
| Sound | Jang Young-gyu | Original Music Composer |
| Editing | Choi Jae-geun | Editor |
| Writing | Kim Jee-woon | Screenplay |
| Directing | Kim Jee-woon | Director |
| Crew | Jung Doo-hong | Fight Choreographer |
| Production | Lee Eugene | Producer |
| Production | Kim Jung-hwa | Line Producer |
| Editing | Lee Yong-gi | Colorist |
| Editing | Han Jae-min | Colorist |
| Costume & Make-Up | Kim Do-hee | Makeup & Hair |
| Costume & Make-Up | Kwak Jung-ae | Costume Design |
| Directing | Lee So-yeong | Assistant Director |
| Crew | Heo Myeong-haeng | Fight Choreographer |
| Lighting | Shin Sang-yeul | Lighting Director |
| Sound | Kim Kyung-tae | Production Sound Mixer |
| Crew | Ji Jung-hyeon | Stunts |
| Costume & Make-Up | Lee Hee-eun | Special Effects Makeup Artist |
| Production | Choi Pyung-ho | Producer |
