Martín San Telmo comes to a small, remote town called Mina Escondida where his wanted half brother, Demetrio, lives and works in a gold mine; upon arrival, Martín discovers that Demetrio has committed suicide after being betrayed by a heartless and ambitious woman who only played with his emotions. Little by little, and thanks to the help of the inhabitants (which initially were hostile to him but later became his friends), Martin manages to determine what led Demetrio to commit suicide so tragically. Martin's investigation leads him to Mexico City, to a millionaires' mansion, of the Prado Castelo family, who own one of the most important jewelry companies in the country. According to information that Martin has managed to discover, the woman for whom Demetrio took his life is living in that house and her name begins with the letter V. He knows this because she had left Demetrio a necklace with the initial V and the Prado Castelo surname recorded in it. Martin meets two young women there, Verónica and Virginia Prado Castelo, both nieces of the family: innocent and fragile Virginia and Verónica, who is strong and courageous. Without knowing which is the guilty one, Martin concludes, after a series of coincidences and rumours, that the woman who he seeks is Veronica. Thus, begins his revenge plan: first to flirt with Verónica, seduce her and make her fall in love with him, and finally marry her. After the wedding, Martin almost kidnaps her and takes her to Mina Escondida where Demetrio committed suicide, determined to make her life miserable and take revenge for the suicide of his brother. Little does he know, like Verónica, they are actually victims of Virginia Padro Castelo, an evil and ambitious woman whose angelic face hides a wicked spirit. The purpose of Virginia's marriage to Emiliano, her cousin, the only son of Jorge and Salma Prado Castelo, is to change her status and become Mrs. Prado Castelo by double-entry and thus gain all the wealth of