His 1992 debut novel Assisted Living received considerable publicity in Sweden for its transgressive content and advanced use of language, which created a literary scandal and led to speculation about its author.
"the elderly care in Upper Kåge Valley"), written in local dialect and full of transgressive content such as pedophilia, incest, necrophilia, antisemitism, cannibalism and strong violence.
Due to the advanced use of language, several critics were convinced that the book was written by an established novelist from Västerbotten, and people such as Stig Larsson, Per Olov Enquist and Torgny Lindgren were mentioned as suspects.
Teratologen has since published three additional books: Apsefiston (2002), Hebbershålsapokryferna (2002) and Att hata allt mänskligt liv (2009).
He has described the poet Comte de Lautréamont as his "great precursor", and has also mentioned Friedrich Nietzsche as a major influence.