Expressionism:

A movement that began in Germany in about 1910 and is best typified by Georg Kaiser and Ernst Toller. Expressionist plays, music, art and literature display reality as seen by the artist looking out from within, and effect the viewer or reader as a revelation of the artist's personal agonies. (Expressionism reacted against Impressionism, which showed the effect of the world on the artist.) In Kaiser's Expressionist play From Morn to Midnight, the world appears only through the Cashier's inner reality.

The Harper Handbook to Literature, Second Edition