After the death of their father, a older brother and his younger sister return to their family home on a secluded island. They are accompanied by the brother's girlfriend. Problems arise when one sibling begins to exhibit carnal desires for the other.
| Actor | Role |
|---|---|
 Chiyoko OguraMegumi | Megumi |
 Hitomi KobayashiNot listed | Not listed |
 Minako OgawaYoshiko | Yoshiko |
 Eimei EsumiNot listed | Not listed |
| JJun NumaokaHirokazu / Brother | Hirokazu / Brother |
| KKenji OmataTarô | Tarô |