The Speckled Band is a film adaptation of a story written by which physician-turned-writer?
The Speckled Band (1931 film): The Speckled Band is a 1931 British film directed by Jack Raymond and an adaptation of Arthur Conan Doyle's story "The Adventure of the Speckled Band", which features Sherlock Holmes and Dr. John Watson investigating the fears of a young woman and the suspicious death of her sister. Arthur Conan Doyle:  Originally a physician, in 1887 he published "A Study in Scarlet", the first of four novels about Holmes and Dr. Watson.
i don't know