Paola and Paulina are twin sisters who were separated at birth. Paulina is a good young woman who lives in poverty. Paola is the evil sister of the two who is married to a wealthy man named Carlos Daniel Bracho. When the twins cross paths by chance, Paola blackmails Paulina to take Paola's place in the Bracho home while she takes a year-long vacation with her lover. Abandoned by her fiancé Osvaldo and following the death of her sick mother, Paulina submits to Paola's plan.