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 |
| Sound | Takashi Mori | Music |
| Camera | Akihiro Okabayashi | Director of Photography |
| Production | Seiichi Morimoto | Executive Producer |
| Writing | Suzuki Matsuo | Novel |
| Art | Hiroyasu Koizumi | Production Design |
| Sound | Hajime Moji | Music |
| Writing | Suzuki Matsuo | Screenplay |
| Editing | Soichi Ueno | Editor |
| Production | Makiko Nagasaka | Executive Producer |
| Production | Masao Teshima | Executive Producer |
| Production | Naoki Kitagawa | Executive Producer |
| Visual Effects | Yu Nishida | VFX Supervisor |
| Production | Takako Imamura | Producer |
| Production | Shinji Ogawa | Producer |