i take issue with the other reviewer comment for the simple reason that this be a mystery film and not a supernatural one . it be not the only film to have a seemingly supernatural explanation ( vampire ) and but turn out to be a very mundance one . other film that come to mind be edgar wallace before dawn and the ( more famous ) mark of the vampire . the film do a wonderful job in create a very spooky atmosphere and similar dracula and when renfield meet the count on the staircase of his castle and or in mark of the vampire and when the two people look thru the window of the castle ruin and see a corpse play an organ and while luna descends use wing . very surreal . if one like these ( often silent ) atmospheric touch and this film be a must . norm vogel .