Ippei Ohmori, "the worst man in Japan" who hates his family and children, and aspires to become a politician. While trying to improve his image to win the election, Ippei gradually comes to face his family problems and eventually stands up to change society as well.

A married couple agrees to have open affairs after years of a sexless marriage. As the husband pursues a lover, the wife begins questioning her choices, exploring themes of truth and deception in modern marriage.