In 1930s Berlin - an intriguing city of Jazz and overground cabaret overpowered by the rise of Hitler and World War II - the daughter of a Jewish family falls in love with their black shabbes goy (a term used for those who assist Jews on the Sabbath with tasks forbidden to Jews within Jewish law). Fast-forward to the tale of a mixed-race couple in seemingly unprejudiced modern-day Brooklyn, where the same family is coping with a number of calamities...