Wartime propaganda piece giving the warning "Be like Dad, Keep Mum". A gossipy housewife is overheard talking about what her son is doing by a Nazi spy.
| Directing | Thorold Dickinson | Director |
| Writing | Basil Bartlett | Writer |
| Writing | Angus MacPhail | Writer |
| Art | Thomas N. Morahan | Art Direction |
| Writing | John Dighton | Writer |
| Sound | Ernest Irving | Music Director |
| Editing | Ray Pitt | Editor |
| Writing | Thorold Dickinson | Writer |
| Camera | Ernest Palmer | Director of Photography |
| Production | Michael Balcon | Producer |
| Sound | Norman Daines | Sound Recordist |
| Sound | William Walton | Original Music Composer |