The Sign of Four
- Afọ: 1987
- Mba: United Kingdom
- Dị: TV Movie, Adventure, Crime, Mystery, Thriller
- .Lọ nka: Granada Television
- Isiokwu: treasure, based on novel or book, river, doctor, sherlock holmes
- Onyeisi: Peter Hammond
- Nkedo: Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey, John Thaw, Emrys James