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Secreto Eterno (The Eternal Secret) stars Marina Tamayo as Dolores, the new wife of widower Don Justo (Carlos Orellana). Insanely jealous of Dolores, Don Justo's two grown daughters conspire to have her arrested on a murder charge. Years later, the guilty party confesses, and Dolores is released. In the interim, the daughter that she bore to Don Justo has blossomed into a beautiful young woman, raised by a wealthy family after her father's death. Rather than bring disgrace to her daughter, Dolores keeps her own identity a secret, only to discover that there are happy endings in life after all.