The Confession (1970): Dude, That Psychological Torture Tho!

Okay, so I just watched "The Confession" (L'Aveu) from 1970 and, man, my brain is FRIED. As a total sci-fi world-builder guy, I usually deal with spaceships and alien languages, but this movie was like a masterclass in creating a dystopian nightmare RIGHT HERE ON EARTH. Like, no laser beams needed, just pure psychological manipulation and paranoia. I'm still trying to process how the Czech secret police just completely dismantled this guy's reality. Seriously, the scene where Artur (Yves Montand) is being interrogated and they keep changing the charges against him? It's BRILLIANTLY messed up! The way they slowly chip away at his confidence and force him to doubt himself... it's almost scarier than any alien invasion movie I've seen. I was constantly thinking about how this level of control could be applied to an alien race subtly influencing a human civilization, slowly eroding their values and replacing them with something... *else*. Makes you think, right? What I'm wondering is, did anyone else find the ending kinda... abrupt? Like, I get that it's supposed to be bleak and realistic, but I was hoping for *some* kind of resolution. Or maybe that's the point? Is it supposed to just leave you feeling totally hopeless and questioning everything? I'm also curious about how accurate people think it is, in terms of showing how these totalitarian regimes actually worked. I've read a bit about real-life show trials, but seeing it visualized like this was something else. Any thoughts? And one more thing - Yves Montand's performance? Holy crap. The way he portrays Artur's descent into despair is just gut-wrenching. He really sells the feeling of being completely isolated and betrayed. Definitely adding this to my list of 'movies that will permanently mess with your head' lol. Let me know what you think.