 Clemente Soriano is a vacuous man who is very powerful and wealthy, he has everything in life: he s a millionaire and has three daughters who all happen to be very beautiful, and has recently married Karina, his young and attractive secretary. However, in his past he has a dark secret, all the happiness will soon be destroyed by his old enemy Octavio Uriate, who is an architect, his family hates Clemente Soriano, because they blame him for the death of his brother Servando, Servando dies of pain, when Clemente ruins him and robs the love of his wife. Isabela Soriano is the oldest daughter of Clemente. A young woman who is strong and adores her father, but she cannot forgive her father for marrying Karina, whom Isabela does not like at all. One day, Isabela almost runs a man over with her car. This man happens to be Victor Izaquiree, the new veterinarian of Clemente s ranch. Isabela falls in love with Victor, even though she is engaged with Cesar, who happens to be the trainer of horses. When Isabela finds out that Victor and Karina understand one another, her worst enemy becomes her jealousy and she ll suffer a great pain of love. Diana Soriano is a young woman, who is very unsure of herself and the profession she has chosen as an architect. Maurico, her old friend from school, courts her, because Maurico is in love with her. One day Maurico presents her to their old professor from college whom he works for, the Architect Octavio Uriate. In spite of the hatred between the two families, a great love will occur between Octavio and Diana. Diana s father Clemente will stop that great love and destroy it. Carolina is the youngest of the Soriano sisters, who has recently returned from the States where she has been studying all this time. To please her father, she lets Rafael to court her, a young man who has nothing and is with her only because of her last name and the money her father posses. But, her heart will betray her because she falls in love with her childhood friend Pablo, who happens to be an employee of Clemente Soriano. When Clemente finds out that Carolina and Pablo are in love, he invents a big deceitful lie, saying that they are brother and sister. Thinking that Pablo is her brother, she marries Rafael. Clemente goes to Pablo s mother, his faithful servant Paz, and tells her to go along with the game, because if she does not, her son Pablo will suffer the consequences. Because of this great big lie Carolina s life will be miserable next to Rafael. At this point all three sisters will lose the happiness, and will fight to regain it. But first they must face their father and uncover the mask he holds.