Based on a true story of a Polish musician who survived the concentration camp only because he could play on the accordion the title melody.

Adam Kamień
as Tadeusz Wyczyński "Bławatek"

Marcin Troński
as Moskwa

Piotr Skiba
as Włodek

Krzysztof Kolberger
as "Kornblumenblau"

Wiesław Wójcik
as "Wesołek"

Marek Chodorowski
as Potato Men Leader

Zygmunt Bielawski
as Artistic Block Leader

Ewa Błaszczyk
as Commandant

Erwin Nowiaszak
as Politics Department Leader

Jerzy Rogalski
as Death Row Guard