Andrew Duggan's first movie.
Based on a teleplay by Rod Serling that ran on "Kraft Television Theatre" (1947) in January 1955. It featured several of the same actors that would appear in the movie, including Everett Sloane and Ed Begley. However the part of Fred Staples, the lead, was originated by Richard Kiley. Begley's character, Bill Briggs, was called Andy Sloane in the original version. Serling's teleplay won him the first of his six Emmy Awards.