Without a doubt this is a master class performance from Jake Gyllenhaal, he played the part of an egotistical, materialistic psychopath, similar to that of the cult classic American psycho. What people arenโt talking about is the amazing performance from Riz Ahmed, who played the part of a low socioeconomical man who would do anything for a buck, an easily intimidated yet brave assistant to Lou Bloom (Gyllenhaal). I think Rizโs supporting role helped substantially in how this film is paced and executed. Fantastic film.