In 1910 he published his first volume of poems,
Towns, nights and people (
Städte, Nächte und Menschen). In 1914 his play
The Son (
Der Sohn) was his first successful
Expressionist drama. At first, Hasenclever was pro-war and volunteered for
military service. Soon he came to reject the war, simulated
mental illness, and was released from duty in 1917. That same year he was presented with the
Kleist Prize for his passionate adaptation of
Sophocles'
Antigone. He was a good friend of the artist
Oskar Kokoschka who depicted him in his 1918 work "The Friends" with
Käthe Richter in
Dresden, where Hasenclever was recuperating from his supposed illness in a sanatorium. In 1924, Hasenclever met
Kurt Tucholsky; at this time he worked as a French correspondent for the magazine
8-Uhr-Abendblatt, spending a lot of time in
Paris, where he also befriended the dramatist
Jean Giraudoux. In 1926 he produced the successful
comedy A Better Gentleman (
Ein besserer Herr) and in 1928 the comedy
Marriages are Made in Heaven (
Ehen werden im Himmel geschlossen). In 1930, he wrote scripts for
Metro-Goldwyn-Mayer for
Greta Garbo; at this time he lived in
Berlin in an "artists' colony". ==Exile, capture and death==