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The series concerns the everyday lives of the operatives of the "murder" department of the Petrovsky District Department of Internal Affairs of St. Petersburg....

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The year is 1941. Viktor Shvets, a state security officer, organizes underground resistance against the Nazi occupation under the name of Gustav Schwartz. As a result of his activities, hundreds of people become part of the resistance, commit sabotage, distribute leaflets and prepare an uprising. Vasily Afonov becomes the leader of the underground....

Two tourists are going to relax and have a good time, but in fact they are not exactly tourists........