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A disgruntled phone company employee develops a device whereby those answering a phone can be murdered, and it's up to Nat Bridger to stop the killer.
Featured Crew
| Michael Anderson | Director |
| Seamus Flannery | Production Design |
| John Kent Harrison | Screenplay |
| Reginald H. Morris | Director of Photography |
| Michael Butler | Screenplay |
| Brian Walker | Co-Producer |
| George Armondo | Story |
| Martin Pepler | Editor |
| James Whiton | Story |
| Dennis Shryack | Story |