Ursule Pauly

A young man falls in love with a beautiful woman being chased by sinister masked figures at night. He tries to track her down, and learns she's being held captive by his father and colleagues who believe she's a vampire.

After a psychoanalyst unsuccessfully tries to convince four sisters that they are not 200-year-old vampires, the Queen of the Vampires promulgates the cause of the Undead.