It is a fateful moment: During one of his concerts, Jewish pianist Klaus Seiser discovers ex-Gestapo officer Dr. Becker. He had imprisoned and harassed young Seiser in 1943 on account of a leaflet. Although the musician managed to escape from prison at the time, he was caught at the Swiss border and Becker had him taken to the Dachau concentration camp. Now, years after the end of the Nazi regime, Seiser reports the ex-Gestapo man and hopes for justice.