Marshall said, "I like eating, I like killing, I like being alive." Earl Brooks believes that his alter ego is real as it gets. They even carry conversations with each other. The two personalities are like night and day. Earl is a successful business and family man that owns his own company, and Marshall is the dark character who is always up to no good. The best way to describe Marshall is that he is Earl Brooks ' id. The id is the pleasure principle, and all it acts on basic impulses, regardless of the repercussions. The id won 't take no for an answer, and tells Earl to do bad things. Marshall is the true serial killer in this movie, and it is his words that make Earl kill. Earl mumbles the serenity prayer throughout the movie because he refuses to accept responsibility for his actions. He passes the responsibility to Marshall. Earl says "I don 't enjoy killing Mr. Smith, I do it because I 'm addicted to it." He even goes to A.A. meetings to possibly help resist the temptation.
Mr. Brooks 3Along with the split personality, people with dissociative disorders may experience mood swings and sleep disorders (Web M.D., 2005-2009). Earl is a smart and successful man. However, since he has this disorder, he also tends to have mood swings. When he is
References: ennis Coon and John O. Mitterer (2009). Psychology: with concept maps and concept reviews. Obsessive-Compulsive disorder, 482-483. Dissociative Disorders, 484. Web M.D. (2005-2009). Dissociative Identity Disorder (Multiple Personality Disorder) http://www.webmd.com/mental-health/dissociative-identity-disorder-multiple-personality-disorder