A documentary and an animation movie. Amid the aftershocks of the French Revolution, many Jews gained civil rights. With the anxiety of a liberalizing Europe, accounts began to spread of secret meetings in the Old Jewish Cemetery in Prague. An influential letter claimed that the “Hebrew sect” was controlling the Jacobins and Freemasons. Jews, once marginalized and vilified on theological grounds, were, with emancipation, held up as master manipulators. Within a generation or two of their new freedoms, three Jewish families with nothing in common would be implicated in the alleged conspiracy, and, soon after,...