Narrative is one of the main forms of literature. It is obvious that in the XX century the narrative changed deeply. On the one hand, it maintained the capacity to reflect life in depth and wholly. But on the other hand, it has lost many of its typical features.
For example, at the beginning of the XX century in works by J. Joyce and M. Proust and others we see radical changes and innovations, such as inner monologue, stream of consciousness. That led to important changes in the plot, characters, etc.
Yet those changes were not casual as they reflected the changes in public consciousness. The same innovation, similar changes of narrative can be noticed in all European and not only in European literatures.