Németh was awarded a degree in dentistry in 1925, and worked in Szent János (English: Saint John) Hospital.

In 1926 he opened his dental surgery, although he continued to work as a freelance at the Saint John's Hospital in the Department of Neurology.

In the winter of 1927 he contracted tuberculosis and travelled to Italy and Felsőgöd to convalesce, retiring from his career as a dentist.

Between 1945 and 1948 he was a casual teacher in the history of Hungarian literature, in mathematics, and other subjects, at the grammar school in Hódmezővásárhely.

In December 1925 Németh won the first prize in a competition run by Nyugat magazine for his short story Horváthné meghal, ("Mrs Horváth Dies").

In 1931 he took a érettségi – the equivalent of a General Certificate of Education – in Greek language, and later he studied it at university for a short while.

On 29 November 1931 he attended a literary dinner in Debrecen hosted by the Ady Association, where five folk writers (József Erdélyi [hu], Gyula Illyés, János Kodolányi, Lőrinc Szabó and himself) were warmly received at their public reading.

His relationship with Nyugat magazine was somewhat strained,[2] and in the 1930s he had confrontations with the editor, Mihály Babits, who was a trustee of the Baumgarten Foundation, because of his criticism of Sophie Török [hu].

In 1943 he wrote a monograph Magam helyett ("Instead of me")[3] in which he stated that one of the reasons for this breakdown was Kodolányi, who disliked the fact that Németh had written a strongly worded letter to Lóránt Basch, who was also a trustee of the Baumgarten Foundation, suggesting that Kodolányi should be given financial assistance.

From April 1934 he edited the Válasz ("Answer") newspaper with Lajos Fülep and Pál Gulyás [hu] and from 1934 to 1935 he was Head of the Department of Literature at the Magyar Rádió (Hungarian Radio Corporation).

Later on the theatre had two other productions based on his works: Papucshős ("Silent Hero") on 4 November 1939, and Cseresznyés ("Cherry Orchard")[4] on 10 January 1942.

During World War II he worked for Kelet Népe, the Híd ("Bridge") and the Magyar Csillag [hu] ("Hungarian Star") periodicals.

Németh collected his monographs and published them in a book called A minőség forradalma ("The Revolution of Quality").

Nelli tries to be a good housekeeper, but at the same time a bad wife, because she wants to annoy her husband in the hope that he will leave her.