Norman Bates is the antagonist in Alfred Hitchcock's 1960 film Psycho. He is presented as shy and eager to please, but there are unsettling aspects like his love of taxidermy. It is revealed that Norman suffers from dissociative identity disorder and takes on the personality of his overbearing mother, leading him to murder Marion. Norman Bates demonstrates how film was exploring psychological themes and screen violence at a time of societal interest in the mind.