Cary Grant stars as an innocent man mistaken for a spy in one of director Alfred Hitchcock's greatest thrillers. While leaving New York's Plaza Hotel, advertising executive Roger Thornhill (Grant) has the misfortune of standing just as the name "George Kaplan" is paged starting a lethal case of mistaken identity and a nonstop game of cat and mouse as he is pursued across North America by espionage agents trying to kill him and by police who suspect him of murder.