 Director John L. Sullivan wants to make a social-problems film called  O Brother, Where Art Thou?  When his producers point out that he knows nothing about trouble or poverty, he goes on the road as a hobo. Joined by a down-on-her-luck aspiring actress, the results are hardly the kind of trouble he had in mind. But when the  experiment  seems to be over, Sullivan falls into more trouble than he ever dreamed of...