"A boy's best friend is his mother." says Norman Bates in Alfred Hitchcock's masterpiece Psycho. Now that's a mouthful or maybe a knife-full! Much has been written about this film. Simply stated, Psycho is the perfect horror film. Every scene is lit and edited beautifully. Hitchcock chose to do Psycho in black and white instead of color because he thought the blood would look more realistic. He also had trouble with the censors who swore that during the shower scene they saw Janet Leigh's breasts as well as the knife plunging into her. Hitchcock made them look at the scene again and upon closer examination they realized their own minds had filled in the details. Brilliant!
As a side note, Steven Spielberg followed Hitchcock's lead while filming Jaws (1975). They were having problems making the mechanical shark look realistic. So Speilberg showed very little of the shark during much of the film, allowing the audience to fill in all the gory details. This same filmmaking technique was also used to great effect in The Blair Witch Project (1999) where the "witch" is never seen on camera.
Anthony Perkin's portrayal of Norman Bates in Psycho is iconic. Everyone else in the cast is great as well. The musical score by Bernard Herrmann [who worked extensively with Hitchcock] greatly enhances the viewer's experience of the film. I think it's one of the greatest horror scores ever! I was lucky enough to come across the two DVD special edition set of Psycho [Universal Legacy Series] at a local used Book, CD and DVD store. The digitally remastered version is pure eye candy and the documentaries that accompany it are excellent and insightful.
I will not summarize the plot because if you haven't seen it, it will ruin your experience of the film. Don't read any more reviews. Just rent it or buy it and enjoy watching a director who is at the peak of his creative power. Pure genius.
For more info check out the film's entry in IMDB.