The secret of Einstein's illegitimacy is revealed by the character of Martin Kirsch, a psychiatrist working at the Charite Psychiatric Clinic. Kirsch stressful long journey in search of truth stems from trips Einstein child two boys cycling in a wooded area near Potsdam, Berlin, on a Saturday morning in late October. They intend to walk along the shores of the lake on Caputh because they heard Albert Einstein once lived and boamed there. Instead of Einstein they found there, precisely a beautiful woman lying on the edge of the lake that allegedly died.