In this article from the Catholic University, the author describes how staircases are used throughout Hitchcock’s films. Staircases are symbols of many things including the occult and the unconscious. A large part of some of Hitchcock’s movies is the discussion of the unconscious part of the brain, for example in Spellbound. A number of Hitchcock’s films reference the unconscious. The article also makes a point of showing how the stairs usually have men with mother issues at the top.