Uncle Was a Vampire (1959)

Storyline:

Uncle Was a Vampire 1959 Baron Osvaldo Lambertenghi is forced to sell his ancestral castle when its converted into a hotel, he stays on as a bellboy His mysterious uncle arrives and turns out to be a vampire When his uncle vampirizes Osvaldo, the newly minted blood sucker gallops about the castle sipping from the necks of dozens of beautiful female guests