“Professor Calthrop, actuated only by scientific motives, and his assistant, out for his own gain, have invented a system for the manufacture of diamonds.” - BFI.
Joseph
Ben
Helen Calthrop
Gallanie
Tony
Marianne
Tompkins
Nichols
Alf Higgins
Prof. Calthrop
Director
Executive Producer
Script
Director of Photography
Screenstory