Directed by Mary Harron, American Psycho (2000) follows a wealthy investment banker in 1980s New York who leads a double life involving violent acts. Starring Christian Bale, the film presents events through the perspective of its central character, blending professional routine with increasingly disturbing behavior. The narrative explores identity, perception, and detachment within a stylized urban setting.

Från IMDB:
A wealthy New York City investment banking executive, Patrick Bateman, hides his alternate psychopathic ego from his co-workers and friends as he delves deeper into his violent, hedonistic fantasies.