In Brooklyn in the late 1940s, adolescent Michael Devlin is a dutiful son to his widowed mother and a conscientious altar boy at the parish church. One day, he meets Rabbi Judah Hirsch, a chance encounter that inaugurates a friendship with vast consequences, good and bad, for both of them. Michael lost his father in the war, and the rabbi, a recent immigrant to this country, lost his wife. The threads of their connection widen and strengthen as the rabbi endeavors to teach Michael about his native Prague and Jewish customs and lore, and the boy, in turn, instructs the rabbi about things American, including baseball. But Michael's awakening does not stop there; sadly, he learns hard lessons, to the point of bodily harm, about anti-Semitism. In fact, Michael must turn to extreme measures to effect a resolution to the problem of hatemongering; using his new storehouse of knowledge, he summons a golem!