According to the prevailing belief, almost all Jewish communities - after Halacha - are not Jews. They have a double identity with which they are more or less satisfied. The book's father-Jewish stories get to the heart of the dilemma or happiness of a hybrid identity. It's about people with Jewish and non-Jewish roots who grapple with chutzpah, self-confidence, pride, but also with regret and conflict with their origins and their consequences. The subjective view of the authors on their own duplicity - or half-measure - is told, mostly anecdotal, humorous, with a shrewd distance. Affected people from different generations report, whose fathers survived in concentration camps, Israel, England or in hiding in Germany or were born after the war.