A satirical comedy about a down on his luck publicist (Jeong), who gets his lucky break when he discovers a man recently released from a mental health facility (Day) looks just like a method actor who refuses to leave his trailer. With the help of a powerful producer (Liotta), the publicist helps the man become a huge star, even marrying his beautiful leading lady (Beckinsale). Their adventures lead them to cross paths with drunken costars (Brody), irreverent unhoused action heroes (Common), unpredictable directors (Sudeikis), a super-agent (Falco), and power-mad moguls (Malkovich). Fame and fortune are not all they are cracked up to be, and the two men must fight their way back to the things that matter the most.