The action of the Russian detective series "Progulki so smertyu" unfolds in St. Petersburg. Suddenly, several brutal crimes occur in the city center. A serial killer takes the lives of girls who have come from other cities to visit the Hermitage and admire the views from the colonnade of St. Isaac's Cathedral. In the hand of each victim, a postcard with panoramas of the Northern capital is found. Ballerina Elizaveta Ryabinina is far from these monstrous murders, as she is a native of St. Petersburg...