Karlheinz Weinberger worked his whole life at the Siemens plant in Zurich and lived in the apartment where he grew up until his death. In an interview during his first show at the Museum für Gestaltung Zürich in 2000, he said his real life started on Friday night and ended on Monday morning. He spent his time off photographing immigrant workers in the street and, in the 1950s, the Halbstarken: marginal, rebellious youth who dressed provocatively, like their American idols, including Elvis. After that short-lived movement petered out, Weinberger focused on motorcycle clubs, attending their parties and gatherings. He also worked for Der Kreis, an underground international gay magazine published between 1932 and 1967.