With continuing releases of major films and TV series on Sherlock Holmes, the fictional character has never been more popular. But what about his creator, the author Sir Arthur Conan Doyle, whose own life was at times as dark and as mysterious as the man he created? This brand new documentary explores the intriguing world of Conan Doyle and discovers the truth behind his decision to to kill off the man who had dominated his life for so long in one dramatic episode.