Captain Drummond and his girlfriend want to marry but a hidden treasure in the house in which they want to celebrate their marriage is complicating the situation involving a series of deaths and an elusive murderer.
Unfortunately the movie Bulldog Drummond's Secret Police is not yet available on HBO Max.
| Directing | James P. Hogan | Director |
| Sound | George Dutton | Sound Recordist |
| Writing | Garnett Weston | Screenplay |
| Directing | Mel Epstein | Assistant Director |
| Sound | Boris Morros | Music Director |
| Art | Hans Dreier | Art Direction |
| Production | Edward T. Lowe Jr. | Associate Producer |
| Art | A. Earl Hedrick | Art Direction |
| Art | A. E. Freudeman | Set Decoration |
| Sound | Glenn Rominger | Sound Recordist |
| Editing | Arthur P. Schmidt | Editor |
| Directing | Russell Mathews | Assistant Director |
| Writing | Herman C. McNeile | Novel |
| Camera | Merritt B. Gerstad | Director of Photography |
| Production | William LeBaron | Executive Producer |
| Production | Stuart Walker | Producer |
