A group of passengers traveling around the Mediterranean on a luxury liner enjoy various adventures and become romantically involved with each other.

A mad scientist pursues a man hoping to study his brain.

A veterinarian in Figarolo, Giuliano Goberti has also been providing care to the villagers since the death of Dr. Lofal, but the arrival of a luscious replacement for the vacant doctor precipitates events. While she prescribes drugs, Giuliano orders the bedridden Countess to eat well and exercise. A Roman journalist reports on the miraculous results. Soon the quiet little Italian town is invaded by a motley crew of imaginary patients, who have to bring an animal with them to save the vet from trouble for practicing medicine illegally. In the end, the brave Giuliano marries the lovely doctoress, thus curing their celibacy.

An American military aircraft with some female soldiers crash lands in an Italian air base to the delight of the Italian soldiers.

A young French girl, Yvonne, having won a competition, goes to Capri for a short break. There she meets Baron Vanvutelli, an old-fashioned old man, Mario, a Roman student, who came to spend the Sunday at Capri, along with two friends, Renato and Julius.

Giovanni Medici, the future leader of the Black Bands, has a last meeting in a convent with his dying mother Caterina Sforza, listening to the re-enactment of her life.