- HD 1080
- Runtime: 103m.
- Status: Released
0
- Languages: en
- Country: United Kingdom
- Director: Peter Hammond
- Stars: Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey, John Thaw
- keywords: treasure, based on novel or book, river, doctor, sherlock holmes
- Production_studio: Granada Television
- The The Sign of Four is featured in the top rankings of 1987
- #5 in Top Adventure Movies of 1987
- #6 in Top Crime Movies of 1987
- #8 in Top Thriller Movies of 1987
- #4 in Top Mystery Movies of 1987
Mary Morstan has received a pearl in the post every year since her father's disappearance. This leads Holmes and Watson to the truth about a secret pact between four convicts during the Indian Rebellion of 1857.
