A symposium — a drinking party with dinner in the offing, only here the participants are not Socrates and the male literati of the “golden age” of ancient Athens, as in Plato’s dramatic dialogue.  This symposium is of 20th-century writers and — quite an update! — they’re all women:  Gertrude Stein, Alice B. Toklas, Agatha Christie, Lillian Hellman and Dorothy Parker, along with Muriel Gardiner, well known for saving many Jews during World War II, and Bernadette, a young house maid.  The time is early in the war, and the gathering at the Stein-Toklas household in the French mountains.