Thread:Coolot1/@comment-30134917-20181114190500/@comment-30134917-20181115021359

In a very famous movie, the main antagonist is a mentally unstable lunatic who moves to a place far from his home and basically takes the whole place over, brainwashing, torturing, and sometimes attempting to murder anyone who disagrees with him all because of a traumatic event in his past that made him snap and turn on his own friends. What movie am I describing?