During the last years of the Weimar Republic, Ewers became involved with the burgeoning Nazi Party, attracted by its nationalism, its Nietzschean moral philosophy, and its cult of Teutonic culture, and joined the NSDAP in 1931. He did not agree with the party's anti-Semitism (his character Frank Braun has a Jewish mistress, Lotte Levi, who is also a patriotic German) and this and his homosexual tendencies soon ended his welcome with party leaders.