Ms. Moss, a superb actor who possesses an unusual ability to project innocence and smarts at the same time, inherits a role played by many since Joan Allen originated it...Fortunately, under the direction of Pam MacKinnon and in the hands of a fine supporting cast, notably Jason Biggs and Bryce Pinkham as the men in (and largely out) of Heidi's life, the play's humor retains its buoyancy, even when the specific matters at hand [...] have acquired the distancing patina of textbook history...For me, the moving heart of 'The Heidi Chronicles' remains the wonderful monologue in the second act. Heidi is speaking at a gathering of her high school alumnae, but instead of the usual manicured, upbeat speech, she delivers an off-the-cuff, emotionally exposed anecdote. It's really a play in itself, about the sense of alienation she felt that day from other women in a gym locker room: women she respects and admires, in some senses, but whose choices to pursue life's more superficial rewards leave her feeling 'stranded.' Ms. Moss, her eyes moistening even as her voice remains strong, delivers this beautiful speech with a grace that grows stronger as Heidi's peppery, self-aware humor gives way to lacerating honesty. Those are, as it happens, key notes in Wasserstein's durable play, and Ms. Moss and her collaborators in this sterling production sing them forth with a revitalizing warmth.