- Genres: Drama
- Running Time: 125 min.
- Directed by: Hwang Dong-hyeok
- Starring: Gong Yoo, Jung Yu-mi, Kim Ji-young, Kim Hyun-soo
Synopsis: Kang In-ho, a newly appointed art teacher at a school for hearing-impaired children in Gwangju, is excited to teach his new students. Yet the children are aloof and distant, trying to avoid running into him as much as possible. Kang does not give up, however, trying to show the kids that he cares. When the children finally open up, Kang faces the shocking truth about the school and what the students have been enduring in secret. Kang decides to unveil the truth against his fellow teachers and superiors, with help from passionate activist Seo Yoo-jin.