After several weeks' maternity leave, Jane Leeves returns to Frasier in her familiar role as Daphne Moon. By way of explaining the actress' pre-birth weight gain, Daphne has just come back from a weight loss class -- armed with the belief that she'd undergone the "supreme sacrifice" out of concern for what Niles (David Hyde Pierce) thought of her (a point driven home with clips from three previous Frasier episodes). Meanwhile, Roz (Peri Gilpin) sets herself up for a shock when she writes a children's book based on a story "dreamed up" by her own mother. ~ Hal Erickson, Rovi