My darling, what have you done to me?

After the death of his mother in an accident, the young man Javier goes to live with his aunt Rosa, whom he did not know before, and her husband Jorge. He likes Rose so much that he becomes obsessed with her, spying on her, taking naked pictures of her, and trying to separate her from her husband. Laura, who lives in the house, is not indifferent to Javier himself and tries to seduce him. Javier causes a car accident and kills Jorge. Finally left alone with his widowed aunt, he confesses his love to her and tries to take possession of her, but is rebuffed