Sato's re-imagining of In a Grove, on which Rashomon was based. In this version, instead of a web of lies and agendas, we get a web of desires, perversions like incest, and occult phenomenon like an oracle-demon, hallucinations, and human sacrifice. Once again, the story starts with a detective trying to unravel the story of a couple encountering a bandit-rapist in the woods, but the real story keeps turning out to be unfathomable as layer upon layer of strange motives and events keep turning up.
A couple encounters a bandit-rapist in the woods. The bandit assaults and ties the husband up and starts raping the wife in front of him (11:30). Eventually, she stops resisting and starts willingly fucking him (15:56). After sex, she then tells the bandit to kill her husband, because she says can't be with him if her husband is still alive. Most of this account is from a witness.