The Secret Door
Movie| Title | The Secret Door |
| User score | 0 |
| Release date | Jun 4, 1964 |
| Genre | Thriller |
| Director | Gilbert Kay |
| Production country | United Kingdom, United States of America |
| Production companies | Dorton Productions, Tifeshire Productions |
| Run time | 72 min. |
World War II espionage in Lisbon with Allied safe-crackers cultivating a master spy and his wife so they can steal Japanese codes that are keys to Axis battle plans.
