The relationship between law and law as a literary motif found in german literature during Weimar times its most refined expression. This research approaches why at that moment in European history this literature-characterized here by three authors who wrote in German language: Kafka, Musil and Doblin-, understood itself in many of its main events as a questioning of the main problems of the Philosophy of Law from its time. In the same way appears a "break" of a nietzschean character with the Philosophy of Law of the German classical era.