"London, 1893: Private enquiry agents Cyrus Barker and Thomas Llewelyn are called in to protect Tsesarevich Nicholas from nefarious forces as he travels to England for a royal wedding. The future Nicholas II travels to London for a royal wedding, bringing with him his private security force and his ballerina mistress, Mathilde Kchessinska. Rumored to be the target of a professional assassin known only as La Sylphide, and the subject of conspiracies against his life by his own family who covet his future throne, Nicholas is protected by not only private security, but the professional forces of both England and Russia."