Synopsis:

The young noble Guelfo lives with his mother, does not work and never has any money. When his mother dies, he finds out that he has an illegitimate brother and therefore is not the only heir. The other brother, Felice, who works as a waiter, rushes to Florence with his friend and sets himself up in the family home. Before long though, he realizes that the old lady left nothing but debts and the two brothers begin to quarrel finally taking half the house each. The arrival of the false Sonia cause a crisis, but after many ups and downs they form a kind of friendship and discover the existence of a precious necklace, which is recovered, stolen and recovered again with the help of Sonia.