The Sign of Four

Runtime: 97 min
Released: 07 Dec 1983
Genre: Crime , Mystery
IMDB: 6.4
Starring: Ian Richardson, David Healy, Thorley Walters, Cherie Lunghi
Writer: Arthur Conan Doyle (novel), Charles Edward Pogue (screenplay)
Director: Desmond Davis
Available countries: UK

Hired by a young lady, Sherlock Holmes and Dr. Watson investigate the strange recent deaths of her missing father’s friends from the army, as well as the whereabouts of the Great Mogul, the second-largest diamond in the world.