Career
As his proper name, Hans Müller, was quite common, he added the name of the Swiss village of Einigen to lieutenant He is known for his screenplay for The White Horse Inn (Im weißen Rößl, 1930), written together with Robert Gilbert and Erik Charell, set to music by Ralph Benatzky. Earlier works were the librettos for Erich Wolfgang Korngold operas Violanta (1916) and Das Wunder der Heliane (1927).
Müller-Einigen went to Hollywood in the 1920s where several films were made from his scripts.
Since 1930 he lived in Einigen. Hans Müller was attacked in Karl Kraus" play Die letzten Tage der Menschheit (The Last Days of Mankind) and in his journal Die Fackel (de) (The Torch).