The book begins by discussing prewar Vatican and Jesuit publications, in which Zuccotti uncovers a hitherto unsuspected prevalence of anti-Jewish sentiment. These publications, along with archival documents, indicate that Vatican protests against Italian anti-Jewish laws were limited to measures affecting converts and Jews in mixed marriages with Catholics, as was help with emigration; the papal nuncio's visits to foreign Jews in Italian internment camps did not differ from those to non-Jews and in no way eased their material discomfort; and interventions by diplomats of the Holy See for Jews threatened with deportation were rare, always polite, and seldom decisive.

Above all, Zuccotti finds no evidence of a papal directive to church institutions to shelter Jews and much evidence to suggest that the pope remained uninvolved. The notion that Pius XII was benevolent and helpful to Jews behind the scenes proves to be a myth.