Charissa Chamorro guest stars as defense attorney Kay Hartley, the former classmate and bitter rival of ADA Serena Southerlyn (Elisabeth Rohm). Hartley is defending the schizophrenic suspect in a particularly callous hit-and-run killing. Relishing the opportunity to settle old scores with Hartley, Southerlyn veers dangerously close to overplaying her hand in court. ~ Hal Erickson, Rovi