I saw this film in the seventies in a french movie theater for the first time. I didn't like it so much at this time (I was 18 years old). The french title was "La tour du Diable" which means "The tower of the Devil". I saw this film for the second time this week and I was surprised, because I like this movie much more today. It's a good mix of blood and nudity (girls are pretty nice here). Atmosphere is creepy and there's a good suspense during 90 minutes. If you are a fan of horror movies from the seventies, you will like this flick. It's not a masterpiece, but a well done entertainment. More than 30 years later, I really enjoy this movie. The print is in a good shape. I recommand this DVD.