Lolita

Humbert Humbert, a British professor, coming to the US to teach, rents a room in Charlotte Haze's house, but only after he sees her 12 year-old daughter, Dolores (Lolita), for whom he is immediately attracted. Though he hates the mother, he marries her as the only way to be close to the girl, who will prove to be too mature for her age. They start a journey together, trying to hide they're not just (step)father and daughter, throughout the country, being followed by someone, which Humbert first thinks to be from the police. The profound jealousy and maybe some guilt, from the forbidden love, seem to slowly drive the man emotionally unstable.