Police Lieutenant Phoebe MacNamara found her calling at an early age, when a violently unstable man broke into her family's home, trapping and terrorizing them for hours. Now she's Savannah's top hostage negotiator, who puts her life on the line every day to defuse powder-keg situations. Sometimes those skills come in handy at home when Phoebe deals with her agoraphobic mother, still traumatized by the break-in after all these years, and her precocious seven-year-old daughter, Carly.