An adventure never completed on my teen days, when I was OBSESSED with graphic adventures. I can understand why.

1. It's glaciar paced,
2. it's confusing
3. most puzzles make sense but their steps don't
4. it suffers from inventory hoarding (and most objects are never used again)
5. its english dub is all over the place (everyone in that sanatorium is dead inside and Samuel makes the most shocking revelations being the most relaxed contrasting with several accusations he makes where he sounds quite convincing)
6. animations are waaaaaaay tooooooo slooooooow (even with some weird out of synch framerate where the main character goes 24-ish FPS but the one you're about to talk to goes maybe half the speed).

Nonetheless, its atmosphere works even though there are plot holes everywhere, It's just the main mystery is weird enough to go on. Plot is pristine clear from chapter one: collect some talismans. Everything that happens between that and the rushed ending is just lore with weird connections to the main plot. If any!

So bad it works. Barely. But I want to play the next one so...

P.D. Main menu opens with a phrase: The past is a diverted mirror of your soul which is quite ominous and rather victorian. And it's one of the closing statements of the game. However, past is never confronted, always referred to and, in the end, not important.
Three writers this game had... three! And none of them thought about, I don't know, proofreading their main theme. It's beautiful that it works even so.