Lolita

Gross college professor is weird and pretentious and narrates everything like he's writing a book.

He needs a room to rent, finds house owned by lonely mom. He doesn't want it until he sees her daughter who is undeniably a child.

He decides to marry lonely mom just so he can stay in the house near the child, which is as bad as it sounds.

Lonely mom finds his diary where he says he hates her and loves her daughter, gets hit by car and dies immediately.

Gross man tells child her mom is in hospital and then just takes her on endless cross-country road trip to motels, pretending he's her dad while also being wildly inappropriate.

They drive all over America, child is miserable, he is paranoid someone is following them — and someone is.

Eventually she runs away from him at a hospital, he spends years looking for her, finds her 3 years later married and pregnant and poor, she tells him who the other guy was.

Gross man murders the other gross guy, who managed to be even worse than the original, which feel about that how you’d like.