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.

Alfonso de Borbón and his cousin María de las Mercedes de Orleans fall in love and, although both families do not maintain good relationships, young people marry when Alfonso became king of Spain.

The driver Antonio, boasts of his sons: John, who shares his work as a taxi driver, Luisa, ladies hairdresser, Antonito, studying to be a lawyer, and Paloma, to be a housewife. But Antonio does not know that their children are not exactly as he thinks. The day Antonio finds out, confronts his wife and children and suffers a big disappointment. Since then no one in the family speaks to Antonio, and he believes that it is best to let them see for themselves that they made a mistake, but this does not result, since each will see their problems increased.

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.

In Madrid, Spain, an omniscient narrator transforms Mari Loli and Merche, two beautiful sales clerks, into Susana and Casta, who flirt with Don Hilarión, an old apothecary, which arouses the jealousy of Julián, who is in love with Susana.

Miguel and Verónica meet in a plane and lie to each other about their true self: she tells him she's a secretary while she actually is the billionaire niece of a duchess, and he tells her he's a trumpet player while he is a Teutonic king. Eventually they fall in love, without knowing about each other's true identity, all of this while Miguel is being urged by his ministers to choose a wife of royal blood and get married as soon as possible, and a revolutionary group, one of which members is Verónica's brother, plans a terrorist attack against the king.

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.

In 1860s Madrid, Fabián Conde is a dissolute young man who drives his dishonored identity into a life of seduction and dueling. When he eventually falls in love, changes for good and finds the truth about his family, his two opposite friends give him contrasted advice on what he should do. He chooses and time goes by. Then something unexpected happens that will put him on the brim of loosing everything he has fought for.