Donato, captain of the Milan ultrà, after spending twenty years in exile in Spain returns to Milan. His story is very simple: on returning to Italy he discovers he has fathered a child with Ginevra his fiancée of long ago (Anna Maria Barbera). His son is twenty years old and lives with his mother and her new companion. Donato, overcome with the need to get to know his own kin decides to meet him. However, to his utter grief, he finds out that his son is the captain of the Inter ultrà! This news for a Milan ultrà captain is a blow to the heart! But in order to stay by his son’s side he pretends to be an Inter follower… With all the comical implications that this lie provides, since an ex captain of the Milan ultrà pretending to be a fan of the Inter team, is like Casanova pretending he is impotent!