You've often seen suspense movies in which a sudden revelation reverses everything that's come before. (Vertigo, for example.) In Paranoiac -- one of a raft of Psycho-inspired suspense thrillers from the early 60s-- these reverses come along practically every minute. The plot twists and re-twists itself over and over: Oliver Reed's brother is dead; no, he's alive, his sister saw him; no, his sister is crazy; no, Reed is trying to to make people think his sister is crazy so he can steal her inheritance; no... and that's just the first 10 minutes or so of this ingenious thriller. Highly recommended.