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.
| Directing | Walter Grauman | Director |
| Sound | Robert Drasnin | Original Music Composer |
| Production | William Kayden | Associate Producer |
| Writing | Paul Gallico | Novel |
| Editing | Michael Economou | Editor |
| Production | Walter Grauman | Producer |
| Writing | Luther Davis | Teleplay |
| Sound | Lionel Newman | Music Supervisor |
| Production | Harry Templeton | Unit Production Manager |
| Writing | Arthur Semon | Executive Story Editor |
| Crew | Samuel E. Beetley | Post Production Supervisor |
| Art | Jack Martin Smith | Art Direction |
| Crew | L.B. Abbott | Special Effects |
| Production | Charles B. Fitzsimons | Supervising Producer |
| Crew | Jack Woolf | Cinematography |
| Production | Jack Sonntag | Production Supervisor |
| Crew | Art Cruickshank | Special Effects |
| Directing | Larry Powell | Assistant Director |
| Art | Walter M. Scott | Set Decoration |
| Art | Sven Wickman | Set Decoration |
| Art | Philip Barber | Art Direction |
