A wife with a fertility problem wants to use her sister's womb to have children, but her sister is enjoying her boyfriend and sexual freedom. The husband is a commanding chauvinist and this soon turns out to be an investigation into authority, patriarchy and conservatism vs. free love and youth culture.

The film follows a frustrated young man who yearns to be in the company of women. If at first he seems unable to make any kind of meaningful connection with them, he awakens dark feelings that will drive him to commit violent crimes after his first sexual experiences.

A detective investigating a serial rapist discovers that he and the perpetrator come from the same lineage of depraved individuals, a genealogy of violent and sexually perverse deviants that stretches through the Meiji, Taisho and Showa eras and can even be traced back to the Edo era.