A cold-blooded debt collector who never fails to get what he wants meets the beautiful yet mysterious ex-impostor whose every word is nothing but a lie. She has the key to save his life but he discovers that she only puts him into a deeper trouble. Time is running out and he needs to get it done while his heart still beats.
Unfortunately the movie Countdown is not yet available on HBO Max.
| Sound | Kim Dong-han | Sound Designer |
| Costume & Make-Up | Kwak Jung-ae | Costume Design |
| Production | 조진아 | Producer |
| Lighting | Hong Seung-chul | Lighting Director |
| Crew | Heo Myeong-haeng | Stunts |
| Sound | Dalpalan | Original Music Composer |
| Sound | Jang Young-gyu | Original Music Composer |
| Directing | Huh Jong-ho | Director |
| Writing | Huh Jong-ho | Screenplay |
| Production | Kim Moo-ryoung | Producer |
| Camera | Kim Tae-kyeong | Director of Photography |
| Production | Oh Jung-wan | Producer |
| Art | Yang Hong-sam | Production Design |
| Production | Kim Bo-ram | Line Producer |
