This is one of my favorite Gothic chillers, that's very atmospheric and creepy, with a solid story and fantastic performances!. All the characters are great, and I loved the creepy setting as well, plus Barbara Steele and Paul Muller are simply amazing in this!. The score is especially awesome, as it's quite chilling, and Barbara Steele gives a tour De force performances as both Muriel and Jenny, plus Paul Muller, is absolutely brilliant as the sadistic scientist. Yes it's talky but it always kept me engaged, and it's actually rather unpredictable, plus it has some very disturbing torture scenes. I also loved the ending as it was the creepiest part in the film, and the only major qualm I had with this is the terrible dialog, but that's a minor thing, plus I got this in a DVD horror set called Back From The Grave, as I have seen this film before so I was quite pleased. The dream sequences with Jenny (Steele) were quite creepy and very interesting, and it actually has a little bit of gore as well, plus Steele's constant laugh always managed to give me the creeps. This is one of my favorite Gothic chillers, that's very atmospheric and creepy, with a solid story and fantastic performances, I highly recommend this one!. The Direction is great!. Mario Caiano does a great! Job here, with effective camera work, creating lots of creepy atmosphere, using a great setting, and just keeping the film at an engaging pace. The Acting is fantastic!. Barbara Steele is amazing here, she is very beautiful, very creepy as the cheating witch Muriel, but extremely likable as the clueless Jenny, she really gives a tour De force performance, and that creepy laugh of her's always gave me the creeps, only qualm is the bad dialog she had to spurt out at times, otherwise she was just perfect! (Steele Rules!!!!). Paul Muller is also amazing as the sadistic scientist, he was very creepy, unpredictable, and was just a madman, he especially Creeped me out in the scene where he's trying to take Jenny's blood, I would love to see more of this guy's work. Helga Liné is OK here, she overacts at times, and her character could have had a bit more Oomph, however she played her part adequately. Laurence Clift is very good here as Dr. Joyce, considering this was his only role, it's not a bad way to be remembered he was likable,and had good chemistry with Steele, I liked him. Rik Battaglia is creepy as David (Steele's lover), and did what he had to do well. Rest of the cast are fine. Overall I highly recommend this one!. ***1/2 out of 5