Loosely based on the 1915 novel by John Buchan Runtime: 1 hour and 26 minutes The Plot: A Race Against Time

Hannay witnesses the incredible feats of "Mr. Memory" before a gunshot triggers the chase.

Hannay is forced to flee while handcuffed to Pamela, a woman who initially believes he is a killer.

The climax returns to the music hall, where the secret of "The 39 Steps" is finally explained. Essential Hitchcock Elements

Robert Donat as Richard Hannay and Madeleine Carroll as Pamela

While visiting a London music hall, Canadian tourist Richard Hannay is approached by a mysterious woman named Annabella Smith, who claims she is a spy. After she is murdered in his flat, Hannay finds himself the prime suspect and flees to Scotland to clear his name and uncover a spy ring known as "The 39 Steps".