While rehearsals for the boarding school’s Christmas production are in full swing, children from the local secondary school kidnap Rudi Kreuzkamm and also steal all the dictation exercise books. Martin, Matze, Sebastian, Uli and Johnny immediately spring into action. In the meantime, a dangerous experiment leads to a broken leg and a letter to a broken heart. A great story about friendship, insecurity and loneliness. The perfect Christmas play.