The younger son of a working-class Jewish family in Montreal, Duddy Kravitz yearns to make a name for himself in society. This film chronicles his short and dubious rise to power, as well as his changing relationships with family and friends. Along the way the film explores the themes of anti-semitism and the responsibilities which come with adulthood.

A Jewish teenager is determined to "make it" no matter what it takes. On his path to success he faces anti-Semitism, betrays family and friends, and faces the responsibilities of being an adult.