16-year-old Maria is forced into Serra D'Aires convent, secretly run by Satanists.
| Release Date | March 10, 1977 | |
|---|---|---|
| Status | Released | |
| Original Title | Die Liebesbriefe einer portugiesischen Nonne | |
| Runtime | 1h 25min | |
| Budget | — | |
| Revenue | — | |
| Language | German | |
| Original Language | German | |
| Production Countries | Germany, Switzerland | |
| Production Companies | Ascot FilmElite FilmCinemec Zweite Produktions KG | |