Born in to the family of a cigar maker, after graduating from primary school he became a metal worker. From 1916 to 1917 he was a member of the Socialist Workers' Youth, from 1917 to 1920 of the Spartakusbund and from 1919 of the Communist Party of Germany. In 1923 he took part in the Hamburg Uprising and was sentenced to two years in prison. After his amnesty in 1925, he worked as a lathe operator in the Kampnagel factory while being the editor of various communist news outlets. Due to "Preparing literary treason and high treason", he was in 1930 sentence to two years imprisonment. He wrote his first novels while in custody.