After an infamous serial murderer is executed, women in the same Oklahoma town are attacked by a copycat; Prentiss gets nervous about making a major real estate purchase.
Ally plays detective when Cage's client is accused of murder, and the firm prepares for its first murder trial; Billy is beset by hallucinations.
Sipowicz and Clark must investigate Jones when authorities believe his sidearm is the weapon that killed Michael's father, Craig Woodruff.
Clark and McDowell suspect a 16-year-old prostitute might be involved in the murder of a respected physician.