The gross mismarketing of this brilliant film led many genre fanatics astray, portraying it as just another cheap slasher. Really, American Psycho accentuates Ellis' smart and biting social commentary with the added effect of Christian Bale in his single greatest and most defining role. Humor has never been darker; Horror has never been smarter. The plot follows an 80s yuppie suffocated by the burden of status and surface level humanity, whose calm demeanor begins to snap as his psychotic inner being struggles to differentiate itself in a society where one is only defined by the material. The film is left intentionally ambiguous as to whether or not Bateman is slowly losing his sanity or actually murdering those around him, which leaves much to be interpreted and begs revisiting. Many of the strengths of the film lie in the details, like Bale's subtle nuances, and small but clever set pieces and props that accentuate the theme. American Psycho will have a lasting effect on the genre and film in general, and is a work that is sure to inspire many thesis papers and film studies.