Martyrs
second most disturbing movie i have ever watched. for sure, it's not for everyone. for me, this kind of movie scares the heck out of me, real life movies. it scares me way more than something like the exorcist, the conjuring, etc. and that is because this movie represents hell in earth. actually, it's so disturbing that it i can't really reccomend to a lot of people.
the most disturbing movie i have ever watched was the girl next door (2007), mainly because i know that the movie is 1/3 of what happened to that poor girl irl. anyways, don't watch any of them. but if you do, don't do while you're eating.