Someone at the Door is a British comedy thriller play by Campbell Christie and Dorothy Christie which was first staged in 1935,Low p.387 and ran successfully at the Aldwych, New and Comedy theatres in London's West End.
Original cast Ronnie Martin - Henry Kendall Bill Reid - Ivan Samson Price - George Devine P.C. O'Brien - Gilbert Davis Harry Kapel, J.P. - Basil Radford Sergeant Spedding - Walter Fitzgerald Stranger - Frank Chaytor Sally Martin - Diana Churchill
Adaptations The play has been adapted twice into films. In 1936 Someone at the Door directed by Herbert Brenon and starring Aileen Marson and Billy Milton and in 1950 Someone at the Door directed by Francis Searle and starring Michael Medwin and Garry Marsh. It was also made into a 1939 television film for the BBC.
References
Bibliography Low, Rachael. The History of British Film. Volume VII. Routledge, 1997.