Superstar mystery novelist Grace McCabe needs to unwind after a grueling book tour, and visiting her sister, whom she hasn't seen in months, seems the perfect solution. But Grace is surprised to find the fastidious Kathleen living in a grungy Washington, D.C. neighborhood. Kathleen, reeling from a bitter divorce and the loss of her son, is saving every penny of her teacher's salary to hire a hotshot lawyer for a custody battle. Then Grace discovers...