American Psycho is a novel by American writer Bret Easton Ellis, published in 1991. The story is told in the first-person by Patrick Bateman, a wealthy, narcissistic, vain Manhattan investment banker who supposedly lives a double life as a serial killer. Alison Kelly of The Observer notes that while "some countries [deem it] so potentially disturbing that it can only be sold shrink-wrapped", "critics rave about it" and "academics revel in its transgressive and postmodern qualities".

Bret Easton Ellis is an American author and screenwriter. Ellis was one of the literary Brat Pack and is a self-proclaimed satirist whose trademark technique, as a writer, is the expression of extreme acts and opinions in an affectless style. His novels commonly share recurring characters.