Nao Mizushiro stars as a woman who has moved on from a sex-addicted past to live a quiet, everyday life. Everything changes one night when she spies on her daughter and her husband, witnessing a side of her mild-mannered son-in-law she never expected to see. Watching him dominate her daughter like a beast reawakens Nao’s old memories and triggers a craving for an unmatched partner. When her daughter leaves for a trip, Nao’s motive is to try and get pregnant by the man she now obsessively desires. The film follows her transition from a normal everyday lifestyle to losing herself in the moment, demanding to be finished inside over and over again in scenes that just don't stop with the single goal of getting filled up.