The third film in the saga of the unlucky clerk Ugo Fantozzi, played by its creator, Paolo Villaggio.
Mauro, a judge, is worried about his older sister Marta, who took care of him since he was a boy, and now suffers from mental illness and suicidal thoughts. She seems to recover from her depression when Mauro acquaints her with Giovanni, a brilliant actor at the edge of legality. However, Mauro becomes unconsciously jealous of their relationship.
Professor Preobrazhensky puts courageous experiences, trying to turn a dog in equal to in all of the person. As a result somebody turns out Doggies. Unfortunately, experience proves that it is better for dog to remain a dog.
