This tale of intrigue finds Valentina Cortese involved in an assassination plot. She helps the police apprehend the conspirators after an innocent bystander is accidentally killed.
| Directing | Thorold Dickinson | Director |
| Writing | Thorold Dickinson | Story |
| Writing | Thorold Dickinson | Screenplay |
| Writing | Joyce Cary | Story |
| Writing | Wolfgang Wilhelm | Screenplay |
| Camera | Roy Gough | Still Photographer |
| Crew | Christianna Brand | Additional Dialogue |
| Production | Hal Mason | Production Supervisor |
| Camera | Gordon Dines | Director of Photography |
| Editing | Peter Tanner | Editor |
| Production | Ralph D. Hogg | Unit Production Manager |
| Sound | Stephen Dalby | Sound Supervisor |
| Camera | Chic Waterson | Camera Operator |
| Directing | Norman Priggen | Assistant Director |
| Sound | Arthur Bradburn | Sound Recordist |
| Directing | Phyllis Crocker | Continuity |
| Costume & Make-Up | Anthony Mendleson | Costume Designer |
| Crew | Sydney Pearson | Special Effects |
| Costume & Make-Up | Ernest Taylor | Makeup Artist |
| Costume & Make-Up | Harry Wilton | Makeup Artist |
| Costume & Make-Up | Barbara Barnard | Hairstylist |
| Art | William Kellner | Art Direction |
| Sound | Roberto Gerhard | Music |
| Sound | Ernest Irving | Conductor |
| Crew | Andrée Howard | Choreographer |
| Production | Sidney Cole | Producer |
