The Secret Door
- Jaro: 1964
- Lando: United Kingdom, United States of America
- Ĝenro: Thriller
- Studio: Dorton Productions, Tifeshire Productions
- Ŝlosilvorto:
- Direktoro: Gilbert Kay
- Rolantaro: Robert Hutton, Sandra Dorne, Peter Illing, Peter Allenby, George Pastell, Martin Benson
