Frankenstein’s Bloody Terror (1968)

aka's: Die Vampire Des Dr. Dracula/La Marca Del Hombre Lobo/The Vampire Of Dr. Dracula/The Werewolf's Mark/Hell's Creatures/The Wolfman Of Count Dracula/The Mark Of The Wolfman

Spanish horror film starring Paul Naschy as a man suffering from the curse of lyncanthrope who seeks help from doctor and wife team. They both turn out to be vampires and end up dueling it out with the werewolf star. Also stars Dyanik Zurakowska and Manuel Manzaneque.

NOTE: This is the English language version of Die Vampire Des Dr. Dracula, also available here at Rare Movie Collector.