Slacker detective Jeong-min (Kim Dong-wuk) is assigned to investigate a serial killer case. For the first time in his career he puts his heart into his work but Yeong-seok (Yoo Oh-seong), an unemployed man with natural instincts as a detective, gets in the way by trying to catch the killer as well.
Unfortunately the movie Hello Murderer is not yet available on HBO Max.
| Sound | Kang Bong-sung | Production Sound Mixer |
| Editing | Steve M. Choe | Editor |
| Production | Seo Yeon | Producer |
| Editing | Kim Chang-ju | Editor |
| Production | Kim Young-min | Producer |
| Costume & Make-Up | Lee Eun-gyeong | Costume Design |
| Art | Kim Min-oh | Production Design |
| Directing | Kim Dong-uk | Director |
| Writing | Kim Dong-uk | Writer |
