April 1958. Maria Krapivina, a graduate of the law faculty of Leningrad University, Department of criminal procedure and criminalistics, is assigned to the UGRO of the Central district police Department. Just a girl, an excellent student, the daughter of intelligent parents falls into a team consisting of rough and experienced operatives who have passed the war. On the first day, Masha wants to quit. But she gets her hands on information about a traitor in the Department associated with a large
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