In 1891, a horrified British public learnt that Sherlock Homes - in a last deadly struggle with arch criminal Professor Moriarty - had perished at the Reichenbach Falls in Switzerland. Two years later, popular demand made Conan Doyle resurrect the great detective. Holmes informs a stunned Dr. Watson: 'I traveled for two years in Tibet, therefore, and amused myself by visiting Lhasa.'
This is all that the world has known of Sherlock Holmes' journey to the East. Jamyang Norbu - an avid reader of Kipling and Doyle - decides to take the matter in his hands; to investigate Holmes' stay in Lhasa, Tibet. What he unearths is the Mandala, written by a wily Bengali scholar, Hurrie Chunder Mookherjee, Holmes' traveling companion. The Mandala holds the key to the mystery.