When the citizens of a small European town start to perish at the hands (and fangs) of a murderous vampire, respectable doctor Paul Kristan (Ralph Morgan) tries to uncover the identity of the bloodthirsty beast. But when Kristan's investigation turns up a dark family secret, he suspects the murderer may be closer to home than he realized. Frank R. Strayer directs this chilling tale that also stars Maxine Doyle and Russell Gleason.