Emerenziano (Ugo Tognazzi) is the middle aged tax inspector looking for a rich woman to keep from working and provide him with food and sex. He travels to northern Italy where he is taken in by three maiden sisters of less than average beauty. He marries one sister and takes the other two as mistresses. The virginal sisters are slowly transformed in to man hungry mavens, each possessing their own individual sexual talents. Emerenziano is felled by a stroke when he tries to get the maid to play erotic games. He becomes a helpless prisoner subjected to the whims of the love starved females in this erotic dark comedy.
