I’m not sure that I can unreservedly recommend the metaphor-heavy film The Convent (1995) by Manoel de Oliveira, but I can recommend its creepy atmosphere and the performances by Catherine Deneuve and John Malkovich, who, honestly, I would watch do anything in any movie for any length of time. And most of all, I can recommend its cool monastery archives somewhere in an isolated nook of Portugal. Malkovich is a scholar doing some research there (but is he really who he says he is?) and Deneuve is his wife that may or may not have the hots for the creepy caretaker of the monastery. The archivist is pretty hot too, and Malkovich may or may not have the hots for her.
The archives pops up a few times in this trailer from YouTube. The archivist is the demure looking cutie with the long braided hair.