A man running a small radio repair shop becomes a key witness in a murder case.
| Actor | Role |
|---|---|
 Isao KimuraTakeo Fujisaki | Takeo Fujisaki |
 Keiko TsushimaKimiko Fujisaki | Kimiko Fujisaki |
 Takashi ShimuraNagasawa | Nagasawa |
 Sonosuke SawamuraOkamoto | Okamoto |
 Yoshio TsuchiyaShiraishi | Shiraishi |
| AAkira SeraHarajima | Harajima |
 Ikio SawamuraTatami shop owner | Tatami shop owner |
 Yutaka SadaMatsunaga | Matsunaga |
 Yasuhisa TsutsumiHonma | Honma |
 Haruko TōgōEiko, Matsunaga's wife | Eiko, Matsunaga's wife |
| TTakashi ItôKenbo | Kenbo |
| TToshiyasu HiyoshiKiibo | Kiibo |
| TTateo KawasakiBroker | Broker |
 Sachio SakaiAssassin A | Assassin A |
 Seiji MiyaguchiAssassin B | Assassin B |