The Sign of Four
- Rok: 1987
- Krajina: United Kingdom
- Žáner: TV Film, Dobrodružný, Kriminálny, Mysteriózny, Thriller
- Štúdio: Granada Television
- Kľúčové slovo: treasure, based on novel or book, river, doctor, sherlock holmes
- Riaditeľ: Peter Hammond
- Obsadenie: Jeremy Brett, Edward Hardwicke, Jenny Seagrove, Ronald Lacey, John Thaw, Emrys James