The noble Pantaleo Di Santa Paola has just died, and the preamble to his will is a confession in which he claims that in his youth he had a relationship with a circus rider that produced twin sons.

A wealthy young woman falls in love with a radio singer without ever having seen him. She forces her strange family (forgetful father, mother with ideas of grandeur, three sisters with a passion for singing and another who takes care of abandoned children) to go to the EIAR headquarters to be able to meet him.