Major William Russell, the English Resident of the princely state of Rajpore, is found dead the morning after the 1909 New Year's Ball. The fabulously wealth Maharaja of Rajpore, a lover of luxury cars and beautiful women, cannot resist a mystery and, over the objections of the local Magistrate and the Superintendent of Police, attempts to solve the crime. As the British authorities dispatch their own investigator from Simla, His Highness deals with the growing hostility of the English Establishment, learning that Major Russell was not as pukka, as proper, as he liked to pretend.
