"The Vampire Happening" is a humorous parody of Hammer’s vampire movies, originating in West Germany in 1971—the original German title roughly translates to "You Only Get Bitten at Night." Pia Degermark delivers a striking performance as both an American actress who inherits a Transylvanian castle and her doppelgänger grandmother, a vampire with raven hair, also portrayed by Degermark. The story involves residents of…