So Great a Crime tells the true story of "Fighting Mac" Sir Hector MacDonald who rose from humble beginnings as a crofter's son through the ranks of the British Army to become a knight of the realm, hero of the Battle of Omdurman and Queen Victorias favourite general. His active soldiering days over, he was appointed General Officer Commanding in Ceylon (now Sri Lanka), but soon finds himself in conflict with the high born elite who run the colony. Allegations of liaisons with young boys surface and MacDonald is forced to return home. Rather than face a court martial, he shoots himself in a Paris hotel.