1917, shortly after the assassination of Grigory Rasputin. The provisional government appoints investigator Heinrich Ivanovich Svitten to study the case of the deceased and find out who he really was for others and for the whole of Russia. Switten collects information bit by bit about the ambiguous elder, but sometimes it is very difficult to distinguish the truth from human speculation. Rasputin's confidants and even members of the royal family help him in the investigation, but everyone has a personal attitude towards this mysterious man. Empress Alexandra Feodorovna, on the one hand, respects him immensely, and on the other hand, Switten notices something similar to fear.