For three years, a nanny's daughter has lived as the heiress of the wealthy DuPont family, while the true heiress, Gloria, remains as the adopted daughter. When the family matriarch uncovers the truth, the imposter murders her and frames Gloria, sending the real heiress to prison. After suffering behind bars and learning her true identity, Gloria is released only to see her family continue to favor the imposter. Disillusioned and heartbroken, she loses all desire to reclaim the family that failed to recognize her.