The Ultimate Vampire Resource and Directory

Prodigal son Eddie returns to his father's creepy estate, where he is soon transformed into a vampire after being bitten by his own mother, whom his paranoid father had been keeping in the cellar. He in turn passes on the curse to his fiancée, and later his sister, who had only recently lost her own beau. Fuentes' blood-drinking pursuits in the surrounding village are eventually traced back to the source, and the family becomes the target of a group of torch-bearing vigilantes.