Inspector Uno and college student Yuko Nagai investigate infidelity, blackmail, and murder at a seaside resort.
| Actor | Role |
|---|---|
 Kunie TanakaInspector Joichi Uno | Inspector Joichi Uno |
 Yōko AsajiYuko Nagai | Yuko Nagai |
 Eitarō OzawaHonma (Metropolitan Police Department Investigation Division Chief) | Honma (Metropolitan Police Department Investigation Division Chief) |
 Yoshie IchigeJunko Yumoto | Junko Yumoto |
 Kenzō KawarasakiYumoto | Yumoto |
 Toshie NegishiReiko Futami | Reiko Futami |
 Isao HashimotoDetective | Detective |
| TToyoto FukudaTekenaka | Tekenaka |
 Junzaburō BanTatsumi | Tatsumi |