A wealthy New York investment banking executive hides his alternate psychopathic ego from his co-workers and friends as he escalates deeper into his illogical, gratuitous fantasies. Patrick Bateman, a wealthy investment banker, hides his psychopathic ego from his friends. Later, his illogical fantasies escalate and he submits to an uncontrollable bloodlust. American Psycho is a 2000 satirical horror film directed by Mary Harron, who co-wrote the screenplay with Guinevere Turner. American Psycho still finds its own blend of horror and humor, thanks in part to a fittingly creepy performance by Christian Bale.