G. H. Mulcaster was born as George Blake Bell. He was married to Lily Lola de Laredo and Diana Napier.
A native Briton banished to Australia for murder, and his wife, Henrietta, the disturbed sister of the man he was convicted on killing, set out to help her conquer her demons and return her life to normal.
An operation of counterfeit five pound notes is discovered at a variety theater, leading to murder during the performance.
Czechoslovakia, March 1939, on the eve of World War II. As the German invaders occupy Prague, inventor Axel Bomasch manages to flee and reach England; but those who need to put his knowledge at the service of the Nazi war machine, in order to carry out their evil plans of destruction, will stop at nothing to capture him.