When a film is adapting to a book; it is difficult to include every sequence in a book to a film. This leads directors to cut several scenes or plot elements that used in the book. According to the novel, the story begins with Norman reading a book while his mother is tormenting him which eventually leads to an argument. While the film begins with Marion (Mary) back story; showing how she stole 46 000 dollars. While analyzing the film, Marion's introduction should have reduced into flashbacks because it wasted thirty minutes of the film. The audiences get the introduction to Norman Bates after thirty minutes, which is disappointing because the story revolves around Norman and not Mary. Displaying the conflict about Norman and Norma would attract
