A famous painting by Antonello da Messina, "the man with a gray glove", has been entrusted to an old restorer. When, subsequently, the painting is withdrawn from the restorer's studio and exposed, the art critic Drago discovers that it is not the original, but a copy.
Lucia Spinelli, orphaned by both parents, is taken as a housekeeper in the house of Mrs. Carla Parodi, when she reaches the age of majority, the young woman is almost forced to marry Mrs. Carla's brother. After the marriage and the birth of the first child, Parodi's intrusions on the life of the two spouses continue.
In this comedy Alberto Sordi plays Rosario Scimoni, known as Sasà, an opportunistic and unscrupulous guy, nephew of the mayor of Catania, and he's always ready to take sides with anyone who can help him. He switches from socialism to fascism; he changes his political faith the same way he changes women. He even tries to found his own party.