This is a bizarre but awesome Nunsploitation film, although the ending was very confusing!. The Story is is very engrossing, and the film really keeps you guessing, plus Anita Ekberg is fantastic in this!. This isn't a very popular film, however i think it is a great sleazy classic, that i throughly enjoyed, and while it's rather tame, i still enjoyed it very very much, plus it did have a couple of shocking scenes. The character development is surprisingly good, and it actually did have a cool plot to it, plus all the women were very good looking for the most part. What i really liked about this film was how it kept you guessing, and a few of the death scenes, were quite graphic, plus i really dug the setting as well. This is a bizarre but awesome Nunsploitation film, although the ending is very confusing, i consider it to be a must see!. The Direction is great.Giulio Berruti does a great job here, with very good camera work good angles, keeping the film unpredictable, and keeping it at an engrossing pace. there is a bit of blood and gore. We get a very gory surgery scene,someone is beaten with a lamp,graphic fall victim,gory corpses,pin in the eye, pins in the face,slit wrist, gory marks on arm from drugs and more!.The Acting is very good. Anita Ekberg is fantastic here, she plays the psycho Nun very well, is sexy, unpredictable, and really did a fantastic job overall!. Paola Morra is hot!, and does fine with what she had to do. Alida Valli is good in her screen time and added class to this. Massimo Serato is good as the old doc. Joe Dallesandro is okay as the doc but his role really wasn't that memorable. Overall a must see!. **** out of 5