Two guys who are working for cartels as cleaners get a request to monitor an 11-year-old kidnapped girl, but the situation gets worse when their supervisor gets killed.
Is Voice of Silence on Netflix? Yes! The movie Voice of Silence is now on Netflix in the countries listed below.
| Sound | Kim Kyoung-ho | Production Sound Mixer |
| Visual Effects | Kim Dong-myeong | Visual Effects Supervisor |
| Crew | Song Min-seok | Stunts |
| Production | Jung Hyun-ju | Executive Producer |
| Camera | Choi Yong-jae | Key Grip |
| Camera | Kim Jin-yeong | Still Photographer |
| Sound | Jang Yong-jin | Original Music Composer |
| Directing | Hong Eui-jeong | Director |
| Writing | Hong Eui-jeong | Writer |
| Production | Choi Moon-seok | Producer |
| Production | Lewis Taewan Kim | Executive Producer |
| Camera | Park Jung-hun | Director of Photography |
| Production | Kim Hyung-oak | Producer |
| Editing | Han Mi-yeon | Editor |
| Production | Afolabi Kuti | Producer |
| Sound | Jang Hyeok-jin | Original Music Composer |
| Lighting | Kim Bo-hyeon | Lighting Director |
| Costume & Make-Up | Im Gyeong-ran | Makeup & Hair |
| Costume & Make-Up | Yang Hyeon-seo | Costume Design |
| Sound | Lee Sung-june | Sound Supervisor |
| Art | Jeong Min-kyung | Production Design |
| Art | Heo Seo-hyoung | Set Decoration |
| Crew | Kwon Gwi-deok | Fight Choreographer |
| Art | Kim Yu-mi | Props |
