I think I watched the movie about 15 years ago on TV, so I would assume it was released somewhere between 1990 – 2005.
It was a horror movie about nuns and they all lived in some castle/mansion on an island. I’m pretty sure it was not an english movie but maybe french or german or something else.
I remember a few scenes. Most notable would be a scene where, if I remember correctly, one of the nuns was pregnant and she gave birth to the child. But the other nuns did not want the nun to keep her baby, so while she was passed out from the childbirth they went on to bury the child alive (?). When the nun woke up, she went looking for her baby and found out that the child had been buried so she ran to dig it out but by the time she did the child’s eyes were eaten out by the worms. This makes me think many days had passed before she got to look for the child so not sure how that fits in the timeline I remember.
Also there was a scene were a nun was either hanging bed sheets outside and there was another mysterious nun lurking around these sheets. I remember that this mysterious nun was also present and lurking in the castle and people were being killed.
Also in the movies trailer or promotion I think there was a line “The one who screams last screams the loudest”.
I know this all is pretty vague but hopefully someone has heard of it! Thank everyone in advance!