Fritz Pfeffer was a dentist in Berlin. He was engaged to Charlotte Kaletta, who was a Roman Catholic. He could not marry her, because the German racial laws prohibited marriages between Jews and non-Jews.
In November 1938, Jews were assaulted and arrested throughout Germany during the so-called Kristallnacht. Synagogues were set on fire, and shops and other Jewish properties were destroyed. For Fritz, the time had come to leave Germany. On 1 December, he put his young son Werner on a ship to his brother in England. Fritz himself fled to the Netherlands. He was joined by Charlotte three weeks later.