John Mulaney is a 29-year-old comedian working the stand-up circuit and looking for his big break. But life drastically changes when self-centered comedy legend and game show host Lou Cannon hires Mulaney as a writer. Lou may be John's entrée into the world of big-money show business, but he's also a total nightmare. Still, the job represents everything Mulaney thinks he wants. But does he really? And, at what cost? And what does it say about him if he quits? And what does it say about him if he stays? And has Lou had work done?