The 39 Steps is a melodrama adapted from the 1915 novel by John Buchan and the 1935 film by Alfred Hitchcock. The original concept and production of a four-actor version of the story was by Simon Corble and Nobby Dimon. Patrick Barlow rewrote this adaptation in 2005. The play's concept calls for the entirety of the 1935 adventure film The 39 Steps to be performed with a cast of only four. 
Poster for theater play.
The 39 Steps
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The 39 Steps

Programme and poster design for theater play - The 39 Steps

Published: