Heathcliff is adopted as a boy into the Earnshaw family, where he develops a strong bond with the daughter of the house, Catherine Earnshaw. Catherine chooses to marry Edgar, the son of the wealthy Linton family. Heathcliff is so angry and disappointed that he flees and stays away for three years. When he returns, he has also built up a fortune of his own and Isabella Linton shows interest in him. Cathy tries to keep him away from her by playing manipulative games, but Heathcliff seems to choose Isabella anyway. Edgar learns of Cathy's plans to end their marriage and demands that she choose between Heathcliff or him. When faced with that choice, Cathy slowly but surely goes insane.