When her young son Minato starts to behave strangely, single mother Saori knows that there is something wrong. Discovering that one of his teachers might be responsible, she storms into the school demanding answers. But as the story unfolds through the eyes of mother, teacher and child, shocking truths begin to emerge.
Unfortunately the movie Monster is not yet available on HBO Max.
| Directing | Hirokazu Kore-eda | Director |
| Production | Genki Kawamura | Producer |
| Production | Kenji Yamada | Producer |
| Editing | Hirokazu Kore-eda | Editor |
| Sound | Ryuichi Sakamoto | Original Music Composer |
| Directing | Shôichi Morimoto | Assistant Director |
| Costume & Make-Up | Mutsuki Sakai | Makeup & Hair |
| Costume & Make-Up | Kazuko Kurosawa | Costume Design |
| Writing | Yuji Sakamoto | Screenplay |
| Editing | Yûki Izumi | Digital Intermediate |
| Editing | Soichi Satake | Digital Intermediate Colorist |
| Production | Rie Tabata | Casting |
| Production | Ichiro Goto | Production Manager |
| Art | Keiko Mitsumatsu | Art Designer |
| Art | Atsushi Sahara | Set Decoration |
| Sound | Kazuhiko Tomita | Sound Recordist |
| Visual Effects | Seweryn Czarnecki | Compositing Artist |
| Crew | Michal Dwojak | Executive Visual Effects Producer |
| Visual Effects | Tomasz Dyrduła | Visual Effects Supervisor |
| Visual Effects | Damian Fabich | Visual Effects Production Manager |
| Lighting | Nicolas Leon Flores | Lighting Artist |
| Art | Rafal Gosieniecki | Concept Artist |
| Visual Effects | Ryota Hamaguchi | VFX Artist |
| Camera | Grzegorz Kapelczak | Data Wrangler |
| Crew | Stefania Kolarz | Legal Services |
| Visual Effects | Kamil Kryński | VFX Artist |
| Visual Effects | Valy Lungoccia | Visual Effects Supervisor |
| Visual Effects | Andrzej Przydatek | Compositing Artist |
| Visual Effects | Tomasz Przydatek | Compositing Artist |
| Visual Effects | Tatsuya Shimada | Visual Effects Producer |
| Visual Effects | Takuma Tsuboi | VFX Artist |
| Crew | Adam Tunikowski | Executive Visual Effects Producer |
| Visual Effects | Mayu Yamashita | Visual Effects Producer |
| Lighting | Tomotaka Yokoo | Lighting Artist |
| Production | Katarzyna Zumirska | Accountant |
| Production | Anna Zimowska | Accountant |
| Crew | Tomoko Oshida | Script |
| Directing | Chiho Asada | Other |
| Production | Eiji Watanabe | Line Producer |
| Costume & Make-Up | Mutsuki Sakai | Hair Setup |
| Art | Keiko Mitsumatsu | Production Design |
| Art | Seo Hyeon-Seon | Set Designer |
| Sound | Akihiko Okase | Sound Effects |
| Camera | Ryūto Kondō | Director of Photography |
| Lighting | Eiji Oshita | Gaffer |
| Sound | Kazuhiko Tomita | Sound |
| Production | Toshie Tabata | Casting |
| Production | Minami Ichikawa | Executive Producer |
| Production | Toru Ota | Executive Producer |
| Production | Tatsumi Yoda | Executive Producer |
| Production | Hajime Ushioda | Executive Producer |
| Production | Hirokazu Kore-eda | Executive Producer |
| Production | Hisashi Usui | Co-Executive Producer |
| Production | Megumi Banse | Producer |
| Production | Taichi Itô | Producer |
| Production | Hijiri Taguchi | Producer |
| Production | Kaoru Matsuzaki | Associate Producer |
