Joaquín Calvo Sotelo

Two unmarried siblings live together without problems until the day a friend leaves her baby in their apartment because she does not have time to take care of him.

Tired of the hardship imposed by his modest salary, Don Sabino selling their meager belongings and convinces his sons to join him in the adventure of know other cities, other people and another way of living.

Mercedes is a very simple girl from Valladolid who marries a plenipotentiary minister. They are in America with the mission to seize some oil concessions. Patricio is forced to seduce the wife of a Chancellor as Mercedes, casually gets more information of the diplomat.

Claudio is a kind mand who works as cashier in a company for several years. Whe he finds closed the bank where he has to deposit a millon of pesetas, he decides to go to a friends party. Due to alcohol effects, he share out the money to the people who need it more.