At first glance, Dr. LucyWeiss looks like a typical high-achieving, upper-middle-class working mother who is raising two children in the suburbs with her husband. But having overcome a difficult childhood in foster care, Lucy knows firsthand what it is like to grow up in the margins. Now a pediatrician, she finds herself working with at-risk patients and their families. Every day she must decide whether a parent's actions are so incompetent -- or...