Hansi Kraus, Peter Alexander, Heintje Simons, Theo Lingen, Gerlinde Locker, Werner Finck, Rudolf Schündler, Ruth Stephan, Hans Terofal, Carola Höhn, Alexander Golling, Harald Juhnke, Jutta Speidel, Wolfgang Gruner, Pierre Franckh
A new teacher, Dr. Dr. Bach, is transferred from his quiet village elementary school to the Mommsen Gymnasium, bringing along his nephew Jan. Bach's lackadaisical methods raise the suspicions of the other teachers.