
In Trzebiatów, a small town, there is an unusual bustle. A crowd of residents has gathered in the market square to welcome their beloved MO sergeant, Władysław Lichniak. The sergeant has just returned from his written high school final exam. The residents, who adore him, make sure he has the right conditions to study. They have limited their alcohol consumption and maintain order in the town themselves. Unfortunately, a fight breaks out and disturbs the sergeant's peace.

as Starszy sierżant Władysław Lichniak, komendant posterunku w Trzebiatowie

as Hela

as Wyderko

as Brożyna, podwładny Lichniaka

as malarz Gienek

as "Szczygieł"

as Przewoźnik Wiktor

as Kapitan MO

as Pasturczyk

as Ignacy Tumanek, śpiewak ludowy

as Ksiądz

as Urzędnik Rady Narodowej w Trzebiatowie

as Porucznik MO

as Kazakow, rosyjski żołnierz

as Stolarz Leon Marchelczyk

as Dziewczyna na rowerze (niewymieniony w czołówce)

as Kierowca autobusu (niewymieniony w czołówce)

as Mieszkaniec Trzebiatowa (niewymieniony w czołówce)

as Mieszkaniec Trzebiatowa (niewymieniony w czołówce)

as Dyrygent orkiestry (niewymieniony w czołówce)