In 1950s New York, a department-store clerk who dreams of a better life falls for an older, married woman.

Harvey's Last Night on the Avenue concerns a sensitive young man who joins a group of his friends on a bar crawl the night before he moves from New York back to his hometown in Texas. An obsessive and socially awkward person, Harvey ruminates over many of his minor social faux pas that he perceives as huge errors. As the night goes on, he accrues more and more faults in his mind, and becomes increasingly unable to connect with the people around him.