Professor Samuel Hale Constable is a government expert in the field of cybernetics. He and his wheelchair-bound wife Lenore became parents late in life, only to lose their daughter Mary before she reached adolescence. Now their daughter's spirit seems to be reaching out to her grief-stricken father from beyond the grave, encouraging him to give up the important project on which he's been working.
Director
Walter Grauman
Don Murray
Dr. Alex Lauder
Ray Milland
Prof. Samuel Hale Constable
Gene Tierney
Lenore Constable
Ed Asner
Saul Wiener
Pamelyn Ferdin
Mary Constable
William Beckley
Arnold Watson Bessmer
Ivor Barry
Dr. Paul Cryder
George Macready
Dr. Frank Ferguson
John Carradine
Mr. Bosch
Virginia Christine
Helga
Frank Maxwell
General Augstadt
Hal Frederick
C.I.C. Technician
Bill Hickman
Enemy Agent
US
