When a ransom bid results in the death of a child, the police have only one lead – the old lady who witnessed the kidnapper using a public phone box. Though her recollection is vague, she volunteers to act as bait for the killer – telling the press that she had seen the kidnapper's face and she waits for him to attack.
| Directing | Frank Nesbitt | Director |
| Writing | Evelyn Berckman | Novel |
| Writing | Neil McCallum | Screenplay |
| Sound | Buster Ambler | Sound Recordist |
| Production | Clifton Brandon | Production Manager |
| Editing | Robert Winter | Editor |
| Directing | Renée Glynne | Continuity |
| Camera | Len Harris | Camera Operator |
| Art | George Provis | Art Direction |
| Camera | Arthur Lavis | Director of Photography |
| Sound | Carlo Martelli | Original Music Composer |
| Camera | Louis H. Lavelly | Focus Puller |
| Sound | Philip Martell | Conductor |
| Costume & Make-Up | Jean Fairlie | Wardrobe Supervisor |
| Sound | Tom Buchanan | Boom Operator |
| Art | Tony Reading | Draughtsman |
| Sound | Spencer Reeve | Sound Editor |
| Art | Peter Russell | Assistant Art Director |
| Directing | Gordon Gilbert | Assistant Director |
| Costume & Make-Up | Joyce James | Hairdresser |
| Costume & Make-Up | Harold Fletcher | Makeup Artist |
| Camera | Laurie Ridley | Still Photographer |
| Directing | Michael Dryhurst | Second Assistant Director |
| Sound | Colin Miller | Assistant Sound Editor |
| Directing | Ray Freeborn | Third Assistant Director |
| Production | Jack Parsons | Producer |
| Sound | Barbara Hopkins | Sound |
| Production | Barbara Allen | Production Secretary |
