Based on Celeste Ng's 2017 bestseller, Little Fires Everywhere follows the intertwined fates of the picture-perfect Richardson family and an enigmatic mother and daughter who upend their lives. The story explores the weight of secrets, the nature of art and identity, the ferocious pull of motherhood – and the danger in believing that following the rules can avert disaster. Rosemarie DeWitt will play 'Linda McCullough' - Elena's best friend. After longing for a child for decades and suffering losses no mother should suffer, Linda happily and wholeheartedly takes in an infant who was abandoned at a local fire station.