Grave of the Vampire | 1973
A vampire rapes a woman so that he will have a child. The young woman gives birth to a baby boy, goes insane, and finally dies from anemia. Since the boy is only half vampire, when he grows up, he finds that he can spend brief periods in daylight and has less desire for blood than his father. But tormented by his vampire traits, he curses his lot and searches for his father, eventually confronting him at a university where is is a professor of occult sciences.