Set in the year 1969 in Sendai, Miyagi Prefecture, Japan. Kyoko Noma is a loving female high school student who takes part in campus protests. One day, she meets university student Wataru Domoto in the tea cafe Mubansou ("A Cappella"). Kyoko falls in love with him, but they get involved in an incident that leads to a shocking ending.
Unfortunately the movie A Cappella is not yet available on HBO Max.
| Writing | Chiai Takeda | Writer |
| Writing | Masa Asanishi | Writer |
| Directing | Hitoshi Yazaki | Director |
| Camera | Isao Ishii | Director of Photography |
| Editing | Ken Memita | Editor |
| Sound | Noriyoshi Yoshida | Sound Recordist |
| Production | Tomoharu Kusunoki | Producer |
| Production | Yukihiko Yamaguchi | Producer |
| Production | Risa Noboriyama | Producer |
| Writing | Mariko Koike | Novel |
| Production | Hirofumi Shigemura | Executive Producer |
| Production | Nobuyoshi Nishida | Executive Producer |
| Production | Hideki Kawamura | Executive Producer |
| Sound | Takuto Tanaka | Original Music Composer |
| Art | Shinpei Inoue | Art Direction |
| Costume & Make-Up | Manami Miyamoto | Makeup Artist |
| Costume & Make-Up | Mie Egashira | Costumer |
| Costume & Make-Up | Mari Miyamoto | Costumer |
