This drama centers on Hank Chinaski, the fictional alter-ego of "Factotum" author Charles Bukowski, who wanders around Los Angeles, CA trying to live off jobs which don't interfere with his primary interest, which is writing. Along the way, he fends off the distractions offered by women, drinking and gambling.

Henry Petosa and Freddy Ace are twins who were separated being babies, and they do not know each other. Henry was adopted by a honest man, while Freddy becomes a gangster. Henry is very shy and has a lot of mental troubles. The film melts the two stories by a young writer who discovers that they were sons of an european noble and they own a large inheritance.