On 16th December 1916 Rasputin visited the palace of the second-richest man in Russia, Prince Felix Youssoupov. Leading a group of conspirators, the Prince apparently set out to murder him. This account of Rasputin's death is based on material in recently released St Petersburg police files, including death photographs which are included in the book. It addresses topics such as the identity of the conspirators and their motives, whether Rasputin and Youssoupov were having a homosexual affair, and whether the prince castrated Rasputin.