Themes and plot devices in the films of Alfred Hitchcock

Alfred Hitchcock's films show an interesting tendency towards recurring themes and plot devices throughout his life as a director. This article lists some of the themes and plot devices that occur repeatedly in his films.

There are images of birds in nearly all of Hitchcock's films. Some of the most prominent are listed below.

Black people appear mostly as background characters in many of his films, except Philippe Dubois who is both intelligent and clever

Hitchcock preferred the use of suspense over the use of surprise in his films. In surprise, the director assaults the viewer with frightening things. In suspense, the director tells or shows things to the audience which the characters in the film do not know, and then artfully builds tension around what will happen when the characters finally learn the truth. Hitchcock often used public places as scenes to heighten terror and suspense. Hitchcock was fond of illustrating this point with a short aphorism – "There's two people having breakfast and there's a bomb under the table. If it explodes, that's a surprise. But if it doesn't..."

Further blurring the moral distinction between the innocent and the guilty, occasionally making this indictment inescapably clear to viewers one and all, Hitchcock also makes voyeurs of his "respectable" audience. In Rear Window (1954), after L. B. Jeffries (played by James Stewart) has been staring across the courtyard at him for most of the film, Lars Thorwald (played by Raymond Burr) confronts Jeffries by saying, "What do you want of me?" Burr might as well have been addressing the audience. In fact, shortly before asking this, Thorwald turns to face the camera directly for the first time.

Similarly, Psycho begins with the camera moving toward a hotel-room window, through which the audience is introduced to Marion Crane (Janet Leigh) and her divorced boyfriend Sam Loomis, played by John Gavin. They are partially undressed, having apparently had sex though they are not married and Marion is on her lunch "hour". Later, along with Norman Bates (portrayed by Anthony Perkins), the audience watches Marion undress through a peephole.

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