Sabel Montalbán is a beautiful woman of the big city who suffers from a serious problem with the lungs and who goes to live in a small town looking for rest. In her new residence, live the parents and brothers of her husband, Aníbal Oterol. Who could imagine that the presence of the young woman would upset the fate of the family forever? Sergio and Daniel are the brothers of Aníbal. Immediately, both feel a strong attraction for the young woman. Sergio is a calm and sensitive man, doctor and always ready to take care of the health of Isabel. On the other hand, Daniel is a beautiful and wild man. He is the freest of his brothers and lives his life with an intense passion. He is madly in love with his sister-in-law, but he knows that he must give up this forbidden love. On the farm of the family Otero, Don Arturo, the patriarch of the family, is a gentle and affectionate gentleman, and Doña Amparo, his wife, is an arrogant mistress. Isabel's drama begins when she feels that her marriage is in full failure, since her husband, Aníbal, cares only about family affairs and money, and distances herself more and more from her. Isabel realizes that she is in love with Daniel and Sergio, but she thinks that she must fight to save her marriage and avoid a serious conflict in the family.