La usurpadora is a Mexican telenovela that tells the story of two identical twin sisters, Paola and Paulina, who meet by chance and decide to switch lives. Paola, a wealthy and selfish woman, convinces Paulina, a humble and kind-hearted woman, to take her place as the wife of a wealthy man named Carlos.
As Paulina tries to adapt to her new life as Paola, she faces many challenges and obstacles, including dealing with Paola's enemies and trying to win the love and trust of Carlos and his family. Meanwhile, Paola enjoys her newfound freedom and takes advantage of Paulina's generosity.
As the deception continues, both sisters must confront the consequences of their actions and decide if they are willing to sacrifice their own happiness for the sake of the other.