A serial killer terrorizes London. Each victim is found with a telegram signed "The Marquis." There seems to be no other common thread between the victims, and Scotland Yard is baffled. Novelist and amateur sleuth, Paul Temple, is warned to stay away from the case, but he and his glamorous wife Steve can never refuse a good mystery. Written by
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Based on the BBC Radio serial "Paul Temple Intervenes" (1942) by Francis Durbridge. See more
Follows Paul Temple's Triumph