The film takes place in 1944 in a small town called Muransk. After the Soviet troops liberated these places from the Germans, the bandits went out to fish. In particular, a criminal group led by fugitive recidivist Yuza brazenly robs people, feeling unpunished. Young and fragile employees of the local militia department, which residents call 'Mur-Mur', Mariana, Agatha, Sasha, and Oksana, come out to fight bandits. While their husbands protect their homeland, they are forced to maintain order in the city.