After being appointed as the vice-principal of her alma mater, Eun-hee becomes plagued by hallucinations. Branded a troublemaker by the teachers, Ha-young hears strange sounds coming from the school's dilapidated restroom.
You can now watch Whispering Corridors 6: The Humming online on the following streaming providers in the United States.
| Writing | Lee Mi-young | Writer |
| Directing | Lee Mi-young | Director |
| Editing | Lee Yoon-hee | Editor |
| Camera | Sung Seung-taek | Director of Photography |
| Editing | Park Gok-ji | Editor |
| Production | Park Eun-ha | Producer |
| Sound | Cho Sung-woo | Original Music Composer |
| Art | Koh Jae-young | Art Direction |
| Art | Jeon Gyeong-ran | Production Design |
| Costume & Make-Up | Kim Da-jung | Costume Design |
| Production | Lee Choon-yun | Executive Producer |
| Costume & Make-Up | Choi Min-seon | Makeup & Hair |
| Sound | Kim Yong-gyun | Sound Supervisor |
| Lighting | Kim Gwang-min | Lighting Director |
| Crew | Oh Se-yeong | Martial Arts Choreographer |
| Crew | Lee Tae-ho | Stunts |
| Sound | Jung Jin-wook | Production Sound Mixer |
| Visual Effects | Hong Jang-pyo | Special Effects Supervisor |
| Art | Shin Seon-hwa | Art Direction |
| Art | Woo Je-hyung | Set Decoration |
| Crew | No Hyeong-gi | Stunts |
| Visual Effects | Kim Seong-hwan | VFX Supervisor |
| Camera | Park Byung-deok | Still Photographer |
