Love Letters of a Portuguese Nun (1977)
- Duration: 01:20:00
- Year: 1977
- Rating: NR
- Cast: Susan Hemingway, William Berger, Herbert Fux, Ana Zanatti, Aida Vargas, Vítor Mendes, Aida Gouveia, Herman José, José Viana, Patrícia Leal, Victor de Sousa, Nicolau Breyner, Clara Marabuto, Esther Studer, Dagmar Bürger, Anton Diffring
- Directors: Jesús Franco
- Writers: Mariana Alcoforado, Erwin C. Dietrich, Christine Lembach
- Genre: Horror|Witches, Horror|Giallo, Horror|Occult, Horror, Adventure, Drama, Cult Classic, Grindhouse, Grindhouse|Horror, Grindhouse|Nunsploitation, Grindhouse|Occult, Grindhouse|Sexploitation, Grindhouse|Giallo
16-year-old Maria is forced into the Serra D'Aires convent, secretly run by Satanists. Her confessor is in collusion with the Mother Superior, and Maria is tortured and forced into sex with men, women, and the horned Devil. She's told that it's all a bad dream.