Based on actual events that took place at Gwangju Inhwa School for the hearing-impaired, where young deaf students were the victims of repeated sexual assaults by faculty members over a period of five years in the early 2000s. Gong Yoo, Jung Yu-mi, Kim Hyun-soo, Jung In-seo, Baek Seung-hwan, Jang Gwang, Kim Joo-ryoung Added on Netflix 2022-03-30. Youtube Trailer