In Collected Stories, playwright Donald Margulies explores the vexed emotional and legal question of a writer's right to create art from the biographical material of another person's life -- particularly when that other person is also a writer. Meditating upon the recent, real-life conflict between poet Stephen Spender and novelist David Leavitt, Margulies has created two of the most vivid and moving fictional characters of his career: Ruth Steiner, an aging, highly regarded author who never wrote about her youthful affair with real-life poet Delmore Schwartz, and Debra Messing, a student of Steiner's who, after publishing a much-praised first short-story collection under Steiner's direction, follows up with a novel that draws upon her mentor's affair.