The Sign of Four
- An: 1983
- Țară: United Kingdom
- Gen: Aventuri, Crimă, Mister, Film TV
- Studio: Granada Television, Mapleton Films
- Cuvânt cheie: treasure, river, doctor, pearl, sherlock holmes
- Director: Desmond Davis
- Distribuție: Ian Richardson, David Healy, Thorley Walters, Michael O'Hagan, Cherie Lunghi, Joe Melia