
The Sign of Four
by Arthur Conan Doyleliterary work· published 1890
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The Sign of the Four (1890), also called The Sign of Four, is the second novel featuring Sherlock Holmes written by Sir Arthur Conan Doyle.
Adaptations (7)
The Sign of Four has been adapted 7 times, across film and television film, from 1923 to 2001.

The Sign of Four1932 · film · 75 min · dir. Graham Cutts · IMDb ↗IMDb5.8A young woman turns to Holmes for protection when she's menaced by an escaped killer seeking missing treasure. However, when the woman is kidnapped, Holmes and Watson must penetrate the city's criminal underworld to find her.
The Treasures of Agra1983 · television film · 151 min · dir. Igor Maslennikov · IMDb ↗IMDb8.3Holmes and Dr. Watson help a young lady who is receiving anonymous letters 10 years after her father passed away under shady circumstances. They find themselves in an enigma involving a treasure, murder and a love interest for Watson.
The Sign of Four1983 · television film · 97 min · dir. Desmond Davis · IMDb ↗IMDb6.3Sherlock Holmes and Dr. Watson try to track down the Great Mogul, the second-largest diamond in the world.

The Sign of Four1987 · television film · 103 min · dir. Peter Hammond · IMDb ↗IMDb7.9Mary Morstan has received a pearl in the post every year since her father's disappearance. This leads Holmes and Watson to the truth about a secret pact between four convicts during the Indian Rebellion of 1857.
The Sign of Four2001 · television film · 90 min · dir. Rodney Gibbons · IMDb ↗IMDb5.9Greed, betrayal and vengeance set the stage for this Sir Arthur Conan Doyle classic. Mary Morstan, a young governess, has been receiving a rare and lustrous pearl annually from an anonymous benefactor.