From 1961, this vampire film as some critic has already mentioned lacks the more chilling or impressive aspects of some later vampire films. It is nothing like American vampire films starring Bela Lugosi or Christopher Reeves. The Mexican actor who portrays the head vampire played the same part in various films. He has a touch of sex and elegance as well as wicked intensity. The plot: a brilliant pianist in decent society is truly a vampire who controls people with music- an organ. He has a huge vendetta against the Coleman family who are vampire-hunters. He makes one of the Coleman daughters into a vampire and is about to do the same to another when he is stopped in his tracks by a vampire hunter who catches on to his power and plays the organ so that the vampires become inactive. The film is long and talky and there are only a few moments of real horror. Most of the film depends on the mood and the atmosphere. It is well done for what it is but it's in Spanish and it's a low-budget production and should only be viewed by Mexican horror fans who would truly appreciate its place in cinema.