Whispering Corridors 6: The Humming (2021)

Back at her old school.

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.

Genres: Horror, Mystery

Stars: Kim Seo-hyung, Kim Hyeon-soo, Choi Ri, BIBI, Seo Hye-won