First he studied architecture and finished it with an exam. Then he studied social sciences and got an exam in it, too. and worked as a clerk for science. After that he worked as a journalist who is only paid when he can sell his stories. He has been working for an international industrial company for some years and only writes in his free time. Zweyer writes detective stories which deal in the Ruhr Area and are very popular in Northrhine-Westphalia because he describes it very naturalistically.