Preview: The 39 Steps

What secrets might be lurking in the shadows? Photo: BBC

The 1935 Alfred Hitchcock mystery based on the John Buchan novel; a man is pursued by the police for a murder he did not commit and by an international ring of spies for information he does not possess.

The confused and set-upon man, Richard Hannay, flees across the desolate Scottish moors – handcuffed to the beautiful and mysterious Pamela. The interwar classic makes for a suspenseful ride in which a young and ambitious Hitchcock flexes his wings in the world of tension and intrigue.

Robert Donat and Madeleine Carroll star in this non-stop thriller as the chase crosses borders by air, train, car and foot; this film never gives you a minute’s rest, but will the ending provide the answers its viewers and Mr Hannay were looking for?

The 39 Steps – Monday at 2.20pm on BBC Two