Watch The Sign of Four (1983) Online

Sherlock Holmes and Dr. Watson try to track down the Great Mogul, the second-largest diamond in the world. Read More

Watch The Sign of Four online. Featuring Ian Richardson and David Healy, The Sign of Four is classified as Adventure and Crime genre movie with an average rating across the web of 6.6. It is available for streaming online in the USA on 3 services such as Amazon Prime Video and Tubi TV. The movie was filmed in United Kingdom and was released on 1983. The Sign of Four was directed by Desmond Davis. Read Less