The true story of Alphonse Bertillon, a brilliant clerk for the French Police, who revolutionizes criminal investigation by instituting scientific methods to identify criminals. By studying and measuring bone structures and body features, his methods lead to the capture and conviction of over 7,000 criminals. His later attempts to use the ancient scientific method of fingerprinting for criminal investigations for the first time in France, soon proved to be even more effective in solving crimes.

Family-oriented stories from the pages of "Reader's Digest" were dramatized on film.

Directed by Christian Nyby, Peter Godfrey, Harry Horner
Starring Hugh Reilly, Gene Raymond, Helen Mowery

Cast
Gene Raymond as Self - Host
Hugh Reilly as Self - Host
Helen Mowery as Clarissa
Paul Cavanagh as Commander Travis
Anthony Eustrel as British Director
Louis Jean Heydt as Constable Trimble
Dabbs Greer as Captain Larsen