28 year old freelance writer Sakura Asuka wakes up tied in a white room. The white room is a protected room located in an isolated ward of a psychiatric hospital. Sakura first became unconscious because of heavy alcohol use and a druge overdose. She’s confined in the single room because of her high risk of committing suicide. Sakura tried to talk to the nurses and doctors but they didn’t listen to her. Under the circumstances another patient Miki, who suffers from an eating disorder, leads her to understand the unknown world. But, Sakura is looking for the way to get back to the real world as soon as possible.
Unfortunately the movie Welcome to the Quiet Room is not yet available on HBO Max.
| Directing | Suzuki Matsuo | Director |
| Production | Takako Imamura | Producer |
| Production | Shinji Ogawa | Producer |
| Camera | Akihiro Okabayashi | Director of Photography |
| Writing | Suzuki Matsuo | Screenplay |
| Writing | Suzuki Matsuo | Novel |
| Editing | Soichi Ueno | Editor |
| Art | Hiroyasu Koizumi | Production Design |
| Production | Masao Teshima | Executive Producer |
| Production | Makiko Nagasaka | Executive Producer |
| Production | Naoki Kitagawa | Executive Producer |
| Production | Seiichi Morimoto | Executive Producer |
| Sound | Hajime Moji | Music |
| Sound | Takashi Mori | Music |
| Visual Effects | Yu Nishida | VFX Supervisor |