The distinctive traits of the Doroshin family are hard work, courage, and principledness. Pavel Nikolaevich is a war veteran and the chief engineer of a factory, while Anastasia Mikhailovna is the head of a university department and an active participant in the partisan movement. Their eldest son, Ilya, a sanitary doctor, demands the closure of one of the city's enterprises. However, war criminals, who are hiding from retribution, know that the Gestapo archives are hidden in the building's basem...