A man and a woman have been secretly married. He belongs to a rich family and she is a poor actress and singer that is failing to success in her career. One day, he decides to tell his family that he's married and flies to Italy, where they live, but the flight has an accident and he dies. The man's brother goes to Spain to look for the body, and he discovers not only that his brother is married, also that his brother's wife is pregnant.

A poor child, who does not know his parents, joins a caravan of puppeteers to escape from the house where it is received and try to find his mother. Although living in extreme poverty, the child has, however, something that helps you get ahead: his great voice. One day, when a producer heard her singing in the street, receives an invitation to go to television.

Marisol, who has recently lost his father at sea, leaving Cadiz to go live with his uncle Ramon. He lives in a family that falls apart because of his wife Eleanor, obsessed only pretend to their friends, who spoiled her children, Javier, Churri, Jorge and Pili. Javier is dedicated to waste money. Churri flirts with several suitors, and end up choosing the least of it is. Jorge lose too much time exercising and neglected studies, and Pili, even a child, she spends hours without leaving the cinema. Javier gets into financial problems that threaten to take him to jail, and Marisol decides to get the money anyway. Furthermore, it decides, with the help of the maid of the house, Herminia, and a friend he met on the train, trying to straighten out the family, earning the enmity of immediate Leonor, who from the beginning did not look favorably upon the arrival of the child.

A marriage without great financial resources and bad luck wins a little lamb in a raffle. Once they have decided to have it for dinner on Christmas Eve, the couple warn that their children have grown too fond of the animal, now christened as Bolita.

An adaptation of the anonymous sixteenth century novel Lazarillo de Tormes (1554), it tells the story of Lazarillo, a poor boy who has to live by his wits after being sold to a series of cruel masters.