The Substance of Fire is a play by Jon Robin Baitz.
At its core is Isaac Geldhart, a childhood survivor of the Holocaust, who arrived in New York City an orphan, reinvented himself as a bon vivant, married well, and found fame and fortune as a champion of authors who are passionate about their work rather than its best-seller potential. Faced with a family-business conflict, the potential Japanese takeover of his increasingly insolvent firm, he must browbeat his three adult children, all princip...
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