80 mins | Thriller, Horror, Mystery | Oct. 12, 1940
80 mins | Thriller, Horror, Mystery | Oct. 12, 1940
| IMDb rating | 5.5 |
| Producers | John Argyle Productions |
| Original title | The Door with Seven Locks |
| Directors | Norman Lee, Roy Parkinson |
| Writers | Norman Lee, Gilbert Gunn, Edgar Wallace |
as Dr. Manetta
as June Lansdowne
as Ann Cody
as Glenda Baker
as Edward Havelock
as Dick Martin
as Inspector Cornelius 'Andy' Sneed
as Luis Silva
as Lord Charles Francis Selford
as Bevan Cody
as Tom Cawler
as Chief Commissioner / Chief Commissioner (Uncredited)
as John Selford
as P.C. in Sneed's Office (Uncredited)
as Handwriting Expert (Uncredited)