Manny and Brigitta Davidson are a remarkable couple. Their parents, emigrés from Latvia and from Nazi-occupied Poland, strove to keep their heads above water and give their children a future in which to prosper. Together, Manny and Brigitta built a business empire from nothing, having survived the terrible Blitz on London during the Second World War.<br>Their two children, however, have lived altogether different lives. Charmed lives, some might say. The Davidsons' business did so...