The search for her vanished brother Tsuyoshi leads Kaoru to the lonesome village Kozukata in the Japanese back-land. The locals react repelling to her, which the exception of the Chinese girl Sally. As her car breaks down Kaoru is trapped in the village; will she have to repay for something she has done in the past?

The head of a psychological research institute and a lieutenant in the Japanese Air Force are both investigating a mysterious cult known only as ‘Midori no Saru’ (The Green Monkey). Members of this group have committed a string of violent suicide-attacks on military bases and public areas. Part of the mystery seems to involve a young child and an enormous Buddha statue outside Tokyo, but how could all these pieces possibly fit together?