This is an earlier, much less successful version of the _Feuerzangenbowle_, but the story is basically the same: The famous writer Hans Pfeiffer has problems in directing his latest play about a high-school class. He's told the reason is that he never attended a regular school, so he decides to swap roles with his younger brother Erich, who's a never-graduating, always kidding senior in a small-town high-school. When Erich aka Hans suddenly turns from class clown into the role model of a pupil, everyone believes it's just another prank. So Hans is practically forced to take over Erich's standard... and enjoys it.
Heinz Rühmann, Ellen Frank, Inge Conradi, Annemarie Sörensen, Jakob Tiedtke, Else Bötticher, Oskar Sima, Franz Weber, Karl Platen, Rudolf Platte, Henriette Steinmann, Maria Seidler, Erwin van Roy, Walter Steinweg, Anita Mey