A son of the Marquise of Seven Almenas is robbed by a crook and deposited in Melchor's house, who sells dolls in the street. The administrator of the Marquise discover the whereabouts of the child and goes to pick him up, but Melchior gives him one of his children, thinking that will ensure the future. Over the years, Melchior, widower, enters as a steward in the house of the marquise where the alleged 'marquis' live splendidly.

Two families that hate each other coudn't hinder the marriage of their firstborns. From this relationship born two pair of twins. Unfortunately their parents die and each family take in one pair of twins. Time pass trough, the twins find each other and many questions need to be solved.

Kitty, niece of a Marchioness, is betrothed to Don Candido, a wealthy manufacturer of preserves. Nico, an old friend of Candide who is completely ruined, arrives to the fashion hotel in which both are. Nico falls in love with Kitty, but, unlike the other men who court her, treats her with indifference. The girl, wounded in his pride, it is interested to Nico. Just before the wedding, Don Candido leaves claimed by its industrial businesses, and instructs his friend to take care of his bride. Nico and Kitty end up falling in love. Don Candido back the same day fixed for the wedding.

Rafael works as a valet of the Marquis de la Peña. Accused of having committed a serious offense during his service, it is fired, although all is due to the machinations of the administrator. Shortly after an incident in which the Marquis is impaired occurs. Rafael comes to his defense, but will be charged again and imprisoned his wife Carolina. Their daughter will be given up for adoption.

An animals' collectionist is despised by his wife so that he decide to comeet suicide, but the notice about the death of his brother, a pianist who lives abroad makes him change his mind. He makes his family think that he has commited suicide and some days after announce the arrival of his brother and he impersonate him. His wife recibes him with an affection that he was unaware to.