In the occupied Vienna of the post-war years, it is once again Karl Bockerer who, in a charming and defiant manner, offers his naive resistance to the ruling powers. This time, his doggedness is directed against the Russian occupiers, whose inhuman severity jeopardizes the happiness of two lovers. Although Elena and Gustl are brought together by fate, it is Karl Bockerer who leads them both with skill and cunning out of the danger zone.