My God, what an amazing game! Up there with the very best IF I have ever had the pleasure of playing. Set in a 15th Century Monastery at the time of the plague, it has a fantastic parses, and it is atmospheric, reasonably easy, and full of moral choices (even when you don't realize it), leading to three different endings, depending on your actions. Unexpected things happen in the end (I caught myself playing with my jaw touching the floor), definitely worth going through the game at least once. The story will get into your mind, and will set you thinking about life, death, morality and God. Reminded me of The Name of the Rose, outstanding in every respect!
I played this a long time ago and just found it again. It is amazing at making me feel uncomfortable emotions and facing difficult moral dilemmas. if you want to challenge your mind and see just how deep your sense of morality runs, play this game.