Early Netflix online streaming, serial killer actor

I saw this on Netflix around when they first introduced online streaming, maybe 2007-2009/2010? It was a dark comedy about a serial killer who either wants to be an actor or is pretending to be an actor. I think he lures his agent into the desert and kills him? I don’t remember much and it’s kind of hazy but this popped into my head.

how to be a serial killer?