Im Schloß der blutigen Begierde (1968)

The story is set in a sinister castle, where the shadows of a terrible, demonic past lurk in every corner. Baron Brack throws an orgiastic party for several guests. He has his eye on the young and alluring Elena Lagrange and is determined to have her. He seizes the brunette beauty and tries to force her to submit to him sexually at his hunting lodge. The other guests notice, and together with Elena’s fiancé, they follow the trail of the aristocratic libertine and his “prey.” When they reach his hunting lodge, they find no one there: Elena has taken refuge in the equally imposing and gloomy-looking vast castle of Count Saxon. In the days that follow, all her friends from the party arrive there. The lord of the castle, Count Saxon, is burdened by a terrible fate. His very young daughter, Katharina, was abused and then killed three days earlier. To bring her back to life, he wants the heart of Marion, Baron Brack’s fiancée. A bloody operation takes place. The guests are soon horrified when the dead woman actually awakens. They now wander in panic through the castle, while Brack is confronted with the sins of his past: Katharina recognizes him as her rapist and murderer. Count Saxon takes bloody revenge and kills him with a sword stroke. In the process, Katharina is accidentally killed once again.