Prison Boss
Rival gangs fight over ownership of bicycle race track.
- Year: 1968
- Country: Japan
- Genre: Crime
- Studio: Toei Company
- Keyword: prison, yakuza
- Director: Yasuo Furuhata
- Cast: Ken Takakura, Sumiko Fuji, Shingo Yamashiro, Harumi Sone, Tōru Yuri, Bin Amatsu