Sampson Cathedral in Leningrad, built in memory of the Battle of Poltava, in the scaffolding in connection with its restoration. Temple building, interiors, preserved decorative details; heads of angels, carved whim, details of icons painted on the walls. Photos showing details of the interior of the cathedral before the October Revolution of 1917. Photo of V. A. Petropavlovsky - the former rector of the cathedral. Inspect the cathedral and talk with the rector of the Leningrad Theological Academy, Professor V. Sorokin; Nadezhda and Raisa Petropavlovsky, curator of the Sampson Cathedral V. Thebessky. The heroes of the film tell about the history of the cathedral, about the charitable activities of the church, about the tragic fate of priests and their family members in connection with the repressions in the 30s in the USSR.