One of the better psychological horror films of all times, not just the late forties. Underrated Peter Lorre delivers the mail, showing the sad effects of a mind slipping away. Yeah, I said underrated. Never hear people mention Lorre nearly enough even though his performances were always top notch. He doesn't get the Karloff, Lugosi, or Price treatment, that's for damn sure. Beast works on many levels. It's a good murder mystery as well as a great horror film. The FX were ahead of their time. That creepy ass mansion is perfect set wise for this story. Mix in the scary crawling hand, the eerie music from the piano, and plenty of suspicion and you get this classic. Peter Lorre really carries the film, so give him a hand. Well, maybe not since he has three to play with in this one. Just watching him change from nice fellow to screaming maniac is worth getting your hands on this film. Those eyes and that wild voice, screaming and changing, will and have gone down in history.