The film tells the story of Aiko, a 35-year-old mute woman who works in a bowling alley, and her brief romance with Yoshioka, a younger man who works as a postal carrier. The two meet when Aiko accidentally knocks Yoshioka off his bicycle, and they have a sexual encounter soon after. Aiko begins preparing lunchboxes and giving them to Yoshioka at his workplace as a way of expressing affection, which she cannot do verbally.
Unfortunately the movie Lunch Box is not yet available on Disney Plus.
| Directing | Shinji Imaoka | Director |
| Writing | Shinji Imaoka | Screenplay |
| Crew | Rosemary Dean | Translator |
| Crew | Tetsuro Shimauchi | Translator |
| Production | Daisuke Asakura | Producer |
