A young couple live under a café in Paris that, unknown to them, is owned by a brutal blackmailer. When he is murdered, they fall under suspicion. However, the husband's father, an amateur detective, believes in their innocence and sets out to find who really killed the blackmailer.
| Directing | Leslie S. Hiscott | Director |
| Writing | Miles Malleson | Theatre Play |
| Writing | Walter Peacock | Theatre Play |
| Writing | Angus MacPhail | Writer |
| Production | Michael Balcon | Producer |
| Camera | Sydney Blythe | Director of Photography |
| Editing | Jack Harris | Editor |
| Art | James A. Carter | Art Direction |
| Sound | Baynham Honri | Sound Recordist |
| Camera | Cyril Stanborough | Still Photographer |
| Writing | Leslie S. Hiscott | Scenario Writer |
| Writing | Robert Stevenson | Scenario Writer |
