The film tells about the historical district of St. Petersburg - the Petrogradskaya side. The city of St. Petersburg. Types of the Peter and Paul Fortress. Peter and Paul beach. Midday cannon shot from the wall of the Naryshkinsky bastion of the Peter and Paul Fortress. Monument to Peter I by sculptor M. Shemyakin. The building of the Cathedral Mosque on Maxim Gorky Avenue. Trinity Bridge over the Neva River. Cruiser Aurora". The building of the ground entrance hall of the Gorkovskaya metro station. Embankment of the Karpovka River. Houses and courtyards of the city. Transport and pedestrian traffic. Wedding procession. The film includes staged shooting: a "bum" walks the streets of the city, removes rags on the parapet of the embankment, puts on a suit and leaves; three young men and a girl organize a picket in support of the "program" of the autonomy of the Petrograd side; three young men and a girl are sitting on chairs next to the monument to Peter I in the Peter and Paul Fortress; three young men and a girl are staging a murder at the entrance, "investigating" it; police officers "detain" the young men and put them in a patrol car.