 After a police officer and other authority figures are found stabbed in their backs, Rachel centers her investigation on a young woman, Pamela Martin, a serial killer who is reported to have assumed multiple identities which probably spring from memories of early child abuse. But Rachel faces an even greater personal threat from FBI honcho Joel Marks who has falsely accused her of forcing a sexual relationship of a subordinate, John Grant, a charge that could ruin her career. Meanwhile, Rachel heats up her romantic relationship with Tom Arquette. Also, Bailey confronts George over his reliance on prescription drugs and orders him to get help.