The Sign of Four
- ਸਾਲ: 1987
- ਦੇਸ਼: United Kingdom
- ਸ਼ੈਲੀ: TV Movie, Adventure, Crime, Mystery, Thriller
- ਸਟੂਡੀਓ: Granada Television
- ਕੀਵਰਡ: treasure, based on novel or book, river, doctor, sherlock holmes
- ਡਾਇਰੈਕਟਰ: Peter Hammond
- ਕਾਸਟ: Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey, John Thaw, Emrys James