Advertising man Roger Thornhill is mistaken for a spy, triggering a deadly cross-country chase.

A retired San Francisco detective suffering from acrophobia investigates the strange activities of an old friend's wife, all the while becoming dangerously obsessed with her.

For young Parisian boy Antoine Doinel, life is one difficult situation after another. Surrounded by inconsiderate adults, including his neglectful parents, Antoine spends his days with his best friend, Rene, trying to plan for a better life. When one of their schemes goes awry, Antoine ends up in trouble with the law, leading to even more conflicts with unsympathetic authority figures.