Dealing with the primary psychological issue of the movie the main character suffered from a type of schizophrenia, which was multiple personality disorder. Dissociative Identity Disorder, frequently specified multiple personality disorder, is a mental illness in which a person has two or more discrete identities or personality states, which frequently take control of the person's consciousness and behavior. The individual often gives the alternate identities their own personal names, and these identities may have attributes …showed first 75 words of 723 total…

…showed last 75 words of 723 total…have two or more distinct personal identities. These identities alternate in their control of the individual's conscious experiences, thoughts, and actions. In many cases, the person's primary identity cannot recall what happened while the individual was controlled by another identity. . Although functional amnesias are a recurrent theme of television shows and movies, relatively few well-documented cases exist in the scientific literature. Most specialists believe that these conditions do exist, but that they are extremely rare.