Happiness 2

The biggest loser in high school goes out one night to return a DVD and gets attacked by a blood-sucking woman. She asks if he wants to die or live. He chooses to live - but back in school he finds himself craving blood. When his desire becomes unbearable, and realizes he has climbed onto a female classmate and is trying to bite her neck. He stops himself, but she hugs him close. She asks, "Did you really want me that much?"