American psycho.

American Psycho is a novel by Bret Easton Ellis, published in 1991. The story is told in the first person by Patrick Bateman, a serial killer and Manhattan investment banker. 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".