In 19th-century Mexico, young orphan Alejandro is adopted by the wealthy, landowning Earnshaw family and moves into their estate, Wuthering Heights. Soon, the new resident falls for his compassionate foster sister, Catalina. The two share a remarkable bond that seems unbreakable until Catalina, feeling the pressure of social convention, suppresses her feelings and marries Eduardo, a man of means who befits her stature. Alejandro vows to win her back.