This is one of the earlier Italian "nunsploitation" films and as such may disappoint those expecting a Joe D'Amato style sex romp like "Images in a Convent" or the bloody satanic pandemonium of the later Jess Franco/Hispanic variety. It is also not nearly as gruelingly realistic and incendiary as "Flavia, the Heretic", probably the best of these films. It most resembles the two films before it--"The Nuns of St. Archangel" and "The Sinful Nuns of St. Valentines". These films don't quite make up a trilogy since they are all more or less the same. A young woman is confined to a convent after she refuses a marriage arranged by her strict father. There she finds herself caught between the kindly but strict Mother Superior and a libertine bisexual nun from an influential family who is able to obtain favors like drunken, naked parties and rendezvous with men on the outside. After the young nun becomes pregnant by her boyfriend a scandal erupts and all the nuns have to unite against a common enemy--the corrupt and brutal patriarchal authority.
Although the story is pretty mind-numbing, this movie really works because of the acting. Suzie Kendall really manages to flesh out what is usually a pretty two dimensional Mother Superior role. Catherine Spaak is equally good as the wicked, libertine nun. Eleanora Giorgi plays the young novice, the role occupied by Ornella Muti and Jenny Tamburi in earlier movies, and she is more than adequate. And if you don't blink you might also see an early unclothed appearance by Paola Senatore who was later in "Images in a Convent" (and apparently hardcore Italian porn). There is some nudity, mostly by the beautiful Giorgi and the extras (Kendall, characteristically, and Spaak, quite uncharacteristically, both keep their habits on), but there is a general lack of the depravity fans have come to expect from this genre. There is one scene where Giorgi (half-naked, of course) is tied up and whipped, and a scene where Spaak is made to crawl across the floor licking it with her tongue--a striking if perhaps not really very erotic image.
This is kind of tame but definitely worth watching, especially for nunsploitation fans and other demented perverts.