In the eighteenth-century Rome, Don Pasquale Corneto, wants his young nephew Ernesto, dedicated to a wasteful social life, to marry a rich spinster, both to save on the expenses of his maintenance and to increase the family heritage.

Renzo and Lucia's love story is jeopardized by Don Rodrigo, a wicked nobleman, who is interested in Lucia. When she refuses his attentions he has her kidnapped and brought to a convent whose prioress is a nun as wicked as he is. The two youths will have to go through a lot of misfortunes before being reunited and being able to marry.

A daughter discovers her parents are far from being the rich bourgeois she thought they were.

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.