Hungary, 1950s. József Pelikán, who works as a dam keeper on the Danube, meets by chance Zoltán Dániel, an old friend whom he saved from death years before and who is now a powerful politician.
The Toth family resides in Northern Hungary. The couple has a daughter and a son, the latter a member of the armed forces. When his weary major is ordered to take a vacation, the son talks him into a visit to his family home. Comedy ensues when the Toths go overboard trying to make things pleasant for the visiting major in hopes of an easier life for their son the soldier.