It is 1883. In Moscow, the Cathedral of Christ the Savior has been consecrated, and the coronation of Alexander III has taken place. These momentous events are being discussed by a small society gathered at the estate “Rodniki” in Tula Governorate. During dinner, a tragic incident occurs—one man is killed. Is it an accident or a malicious plot? The answer will be sought by the newly appointed police officer Ivan Tregubov and the experienced chief constable Ilya Petrovich Stolbov.