We see Christopher Lee as Count Frederic Regula, who used the blood of 12 virgins for his experiments. He is drawn and quartered but not before swearing vengeance on the descendants of the Judge and the woman who escaped and turned him in.
Now, we come some years later, Roger Mont Elise (Lex Barker) has come to claim his inheritance. He is joined on his journey by a somewhat randy priest, Father Fabian (Vladimir Medar), and a young woman, the the beautiful Baroness Lilian von Brabant (Karin Dor) and her servant Babette (Christiane Rücker). They were travelling in a separate coach that was beset upon by robbers, who took their horses.
The setting near the castle is surreal, with body parts seemingly growing out of the trees.
Carl Lange as the Count's servant was particularly good. Lee, himself, was particularly evil in his appearance. Karin Dor did this film the same year as she was a Bond girl in You Only Live Twice. The art direction was excellent in the castle, with many strange paintings, and the cinematography was superb. The buzzards in the castle were a nice touch, as were the scorpions and spiders and snakes. Roger's escape from the pit with the pendulum can only be described as miraculous.