Well, most reviewers seem to class this as "nunsploitation" but this production is, simply, much too good to be classified as anything sleazy, in fact I felt reminded more of "The Nun's Story" than anything else. Sure, there's some nudity, but never gratuitous - even the "sisterly love" and corporal punishment scenes were handled with taste and respect. And there's real acting here, some very intense and touching scenes. The costumes and sets are simple but top-notch, the music is good, camera and light are not outstanding but serviceable, and the story progresses at a slow (fitting the theme) but relentless pace - never during the 90min runtime did I feel the need to fast-forward.
The story itself is simple enough, with the young heroine banned to a convent against her will - from there it progresses along predictable ways as she slowly gets to know the ways of the convent, a community balanced on a precarious equilibrium of powers, centered around the mother superior on the one hand and sister Elisabeth on the other (a simple nun but with family connections up to the archbishop). The mistrust between everyone is palpable, every small gesture, condescending look and so on carries meaning. Despite the slow pace the tension is high all the way through. It's no surprise that the balanced powers come crashing down in the last act, still I was a bit shocked about how cruel the resolution was. The post-credits claim that this is based on true events; I don't want to dig deeper but the bleak ending does indeed have a most realistic appeal.