Two university students from Kyoto decide to swap partners and spend the night in an isolated motel. However, one of the couples is attacked. Desperate for answers, they search for the attackers and come across a cult that promotes sexual freedom.
| Actor | Role |
|---|---|
 Shin KishidaMaki | Maki |
 Kōji ShimizuShinichi | Shinichi |
 Hiroko SakuraiYasuko | Yasuko |
 Ryo TamuraHirochi | Hirochi |
| AAkiko MoriYukiko | Yukiko |
 Daigo KusanoNot listed | Not listed |
| MMihiro WakabayashiNot listed | Not listed |
| MMaya KitajimaNot listed | Not listed |
 Akiji KobayashiNot listed | Not listed |
| SShōji ŌkiNot listed | Not listed |
 Yasumi HaraNot listed | Not listed |
 Tokie HidariNot listed | Not listed |
 Genshū HanayagiNot listed | Not listed |