The main character is Rafael Medina; he meets Alejandra Álvarez del Castillo when he crashes in to her car and sends it over the side of the road. He takes her to a hospital where he tells the doctors he is her husband for fear of getting thrown in jail for causing the accident. However, the situation worsens when Alejandra's boyfriend, Marco, shows up at the hospital and has Rafael arrested. In exchange for his freedom, Rafael has to pay for the damage he caused, thus he is forced to find a job so that he is able to pay the outrageous sum of money.
Alejandra makes a deal with Rafael and hires him to work in Autos Siglo so he can pay her back. Rafael immediately falls in love with her, but he has a girlfriend Vicky who is determined to marry Rafael even though he might not feel the same. Lucky for her, she has two older brothers and her dad, who own and work in a butcher shop, often intimidating Rafael to make sure Vicky gets what she wants.
After a series of events, Alejandra and Rafael both realize that they are in love with each other. The most memorable events include a party in Juchitepec, their trip to Puerto Vallarta, Jalisco, and of course their daily interaction at Autos Siglo. Many try to keep them apart, especially Vicky and Marco. However, both Vicky and Marco have cheated on their significant others. Marco does not love Alejandra, but wants to marry her for her money and hacienda, which is one of the most beautiful in the country.
After several events, another woman, named Marian Celeste, makes her appearance and eventually falls in love with Rafael. She tries to make him fall in love with her; she even goes as far as to wear a sexy bikini to seduce Rafael and help him gain clients at Autos Siglo. After many problems, love triumphs as Rafael and Alejandra get married. Together they get back to the now recovered house of los Alvarez del Castillo, which had been lost as a side effect of one of Marco's schemes to keep Alejandra and Rafael apart, and Rafael serenades Alejandra with the song that brought them together in Juchitepec.
