Koji, a driver for the Tokyo-Nagoya express bus service, picked up a woman one day on the Hakone Driveway. While Koji and his assistant Saburo were checking the engine, the woman disappeared, leaving a thick envelope on the seat.
| Actor | Role |
|---|---|
 Teruo YoshidaKoji | Koji |
 Keiji TakamiyaMoriyama | Moriyama |
 Junko IkeuchiKayoko | Kayoko |
 Mako SanjōSanae | Sanae |
 Yōko MiharaAkemi | Akemi |
| HHiroshi AyukawaOnijima | Onijima |
| AAkio ShirakawaNishida | Nishida |
| RRyūji OkiKuroda | Kuroda |
| TTakamitsu WatanabeWatanabe | Watanabe |
| SShiro EnamiJisho | Jisho |
| YYuji MunakataHoriki | Horiki |
| KKazuo HondaKaneko | Kaneko |
| JJun KambayashiNobuo | Nobuo |
| TToyo TsugawaSaburo | Saburo |