Udaka is a new, post-war city where corruption has already taken hold. A persistent district attorney wants to arrest and convict Katsumata, a laughing, self-confident thug. The D.A. gets an anonymous letter about the suicide five years' before of a city council member. Evidence about the case leads the D.A. to Tachibana, struggling to go straight after involvement with the mob and a prison sentence for killing the man responsible for the rape and suicide of his fiancée. One of Tachibana's friends is Keiko, the daughter of the dead councilman and the ward of another powerful official. How do these stories connect?
You can now watch Rusty Knife online on the following streaming providers in the United States.
| Writing | Shintarō Ishihara | Screenplay |
| Production | Takiko Mizunoe | Producer |
| Sound | Masaru Satō | Original Music Composer |
| Editing | Masanori Tsujii | Editor |
| Directing | Toshio Masuda | Director |
| Writing | Shintarō Ishihara | Story |
| Writing | Toshio Masuda | Writer |
| Camera | Kuratarō Takamura | Director of Photography |
| Directing | Kazuo Kawabe | Assistant Director |
| Art | Takashi Matsuyama | Art Direction |
