It is based on the novel All the Way by Charles Williams and stars Edmond O'Brien, Laraine Day (in her final film), and Julie London.

Lippert bought the rights to the book and arranged for Hubert Cornfield to adapt and direct.

Lippert and Fox president Spyros Skouras increased the budget to a level that co-producer Maury Dexter described as a "nervous A class" of film.

"[4] In a contemporary review for the New York Times, critic A. H. Weiler called the film "... taut, complex and eerily fascinating for only about three-quarters of the way.

A dénouement that seems telegraphed and contrived and some situations that are overly garrulous and static keep 'The Third Voice' from reaching a high pitch of excitement.