Loosely based on the novel "Letters of a Portuguese Nun" by Mariana Alcoforado, this West German/Swiss "nunsploitation" shocker from Jess Franco follows 16-year-old Maria (Susan Hemingway) as she's sent to a Satanist-run convent. Subjected to various forms of sexual torture-including with the Devil himself-Maria believes her only hope of escape lies in a letter she writes to God. William Berger, Herbert Fux, Ana Zanatti also star. 89 min. Widescreen; Soundtrack: English (dubbed); audio commentary; featurettes; image gallery; theatrical trailers. Dubbed in English.