Overview
The "unseen guardians" of the title are the Postal Inspection Service, which investigates mail order racketeering; the Underwriters' Laboratories, which are shown testing electrical equipment, fire extinguishers, and large floor safes; and those who run orphanages, who assure that the children in their care are placed in proper adoptive homes.
DirectorBasil Wrangell
WritersGeorge Wallace Sayre, Samuel H. Chain, Doane R. Hoag
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Production companiesMetro-Goldwyn-Mayer