 "Suspicion" illustrates how a novel's plot can be so much altered in the transition to film as to reverse the author's original intention.As William L. De Andrea states in his "Encyclopedia Mysteriosa" (1994) that "Suspicion"was supposed to be the study of a murder as seen through the eyes of the eventual victim.However, because Cary Grant was to be the killer and Joan Fontaine the person killed, the studio — RKO — decreed a different ending, which Hitchcock supplied and then spent the rest of his life complaining about.