A Circle in the Square tells the story of a project that by all the rules of logic should have failed, but instead succeeded wildly. In the 1960s, a time of deep religious and existential crisis, when the question of God’s existence was being debated among people of all faiths, a young man fresh out of graduate school began teaching an ancient religion to its own members – Jews who had little or no connection to Judaism. A spellbinding account of one man’s profound influence on Orthodox Judaism – an influence that is felt to this day.