False Idols by Betty Ferm (1974): A Demon Needs a Maid

Remember that scene in 1979's Love at First Bite in which Richard Benjamin, the Van Helsing character, attempts to thwart George Hamilton's Dracula by pulling a crucifix from his pocket—but mistakenly takes out a Star of David? When I saw the movie as a kid I didn't get the joke, but it's a good one. Jewish-themed horror is, alas, the tiniest of subgenres in vintage horror fiction,