John-Henry Butterworth is an English screenwriter who has co-written several screenplays with his brother Jez Butterworth. The brothers won the Writers Guild of America's 2011 Paul Selvin Award for their screenplay for the film Fair Game (2010).
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.