A couple's ailing marriage is put to the test when they are held hostage in an isolated vacation rental by an unseen Voice that commands their every move.
Sir Karell Borotyn appears to have been killed by Count Mora, a vampire believed to haunt the local village. Now his daughter Irena is the count's next target. Enter Professor Zelen, an expert on vampires who's sent in to prevent
This early 70's giallo by Umberto Lenzi is certainly among the best in his filmography and also in the whole genre. Personally I think Lenzi's best films are the funny cartoon-turned-film Kriminal, the stylish giallo Seven Blood-
