Are You Afraid of the Dark? Season 6 Episode 8

Adder is obsessed with ”hunting vampires” and does by thinking and acting as a vampire would. On vacation he drags his family to Wisteria, a town rumored to be an area of vampires, about a week after a funeral-home owner claimed to be attacked by one. That night, he goes looking in the famous coffins the legendary Dreyfus was said to be in, but learns the story isn’t legend. And he not only has to face Dreyfus, but also some locals who know vampires are real and take Adder’s actions to heart enough to think he himself is a vampire.