A provincial town. The criminal boss is concerned about a series of minor terrorist attacks that have recently begun to accompany him. Suspecting that someone from his former entourage is behind this, the boss gives the command to attract a cleaner. This cleaner turns out to be a nice woman Vera, who enthusiastically takes up the search for a terrorist. Together with their friend — a cheerful dolt Dima — they will go through fire and water, and come out to Serge, the former partner of the boss, who has good reasons for revenge. Vera will understand and appreciate Serge, and there will be a situation uncontrolled by the boss, for the resolution of which he will be forced to equip a whole squad…