In a perfect planned community, the perfectly organized Elena Richardson is thrown completely off course by the arrival of a single mother and daughter. After renting a house to Mia Warren, the Richardson family becomes drawn into the orbit of the free-spirited artist. And when friends of the Richardsons try to adopt a Chinese-American baby, setting off a custody battle that involves the whole town, Elena and Mia come down on opposing sides. Elena becomes determined to undermine Mia by digging up her secret past, and the price of her obsession mounts.