King of California is a comedic drama about the relationship between a father and a daughter. Miranda (Evan Rachel Wood) is sixteen and already on the road to nowhere. Having dropped out of school, she survives by flipping burgers. Her mother is nowhere to be found. Her father, Charlie (Michael Douglas), is in a mental institution. He is discharged, but it is clear that his instability is far from cured. Convinced that lost Spanish treasure is buried under the local Costco, he seeks his daughter's help, talking her into applying for work there so they can find a way to excavate. Although she does not believe him, she nonetheless begins to realize that cooperating will give him one last chance to achieve his dreams. Is the gold real, or is Charlie simply a deluded madman desperately clutching an illusion? The movie is the writing and directing debut of Mike Cahill.