two friends investigate the disappearance of a writer on a small island, which has been largely cut off from the mainland since the fall of the shinto during the meji era. they stumble across several strange occurrences, such as a naked female corpse hanging upside down on a tree during one stormy night. locals speak of old-standing traditions, folk rituals and superstitions, but after more bodies were found, shiho and tsuyoshi wonder if there's a serial killer among the locals…