1944, in the depths of World War II. Toyomatsu Shimizu is a completely typical barber from a remote sea-side town who lives frugally but happily with his wife Fusae and their five-year-old son. Eventually, though, the army beckons and he is drafted. One day an officer on the battle-field orders him to kill a captive U.S. soldier. Although Toyomatsu lacks the spirit to kill the man, and only wounds him in the arm, the victorious U.S. soldiers will not accept this, and Toyomatsu is arrested and tried as a war-criminal. And he receives the cruelest sentence possible...
Unfortunately the movie I Want to Be a Shellfish is not yet available on HBO Max.
| Writing | Shinobu Hashimoto | Writer |
| Production | Nobuhiro Azuma | Producer |
| Production | Katsuaki Setoguchi | Producer |
| Directing | Katsuo Fukuzawa | Director |
| Sound | Mr.Children | Theme Song Performance |
| Editing | Hirohide Abe | Editor |
| Art | Takeshi Shimizu | Production Design |
| Visual Effects | Katsuro Onoue | Special Effects Supervisor |
| Sound | Joe Hisaishi | Original Music Composer |
| Costume & Make-Up | Kazuko Kurosawa | Costume Design |
| Camera | Kosuke Matsushima | Director of Photography |
| Writing | Tetsutarō Katō | Novel |
