“Primal Fear” (1996) is a masterfully made film based on the novel written by William Diehl. Aaron Stampler (the main character) was on trial for the murder of an archbishop. He subtly convinces his psychiatrist and defense attorney (Martin Vail) that he suffers from multiple personality disorder. Stampler then successfully pleaded insanity and was transferred to a mental institution for "help". In the end, the audience shockingly discovers that Stampler has been lying about his alter ego the entire time; he manipulated everyone and made his way to freedom. “Primal Fear” provides excellent insight into psychopathy and contains subconscious themes that the writer projects through the actions of the main characters. New studies reveal that psychopaths not only know right from wrong, but can justify their morally inappropriate actions regardless of the consequences. Psychology experts Maaike Cima, Marc Hauser and Franca Tonnaer have developed a hypothesis that could potentially challenge previous preconceptions about psychopathy: “Adult psychopaths have deficits in ...