A truck hits a pedestrian and the investigation reveals the victim's link to a baby-food company in which a new partner has connections to the Russian mob.

Suspects in a psychiatrist's murder include the victim's ex-husband, a patient suffering from multiple-personality disorder and her obstructive father.

The investigation into a prostitute's murder leads to a married plastic surgeon as the obvious suspect, but Kincaid has a hunch that an elaborate frame-up is in play.

A message overheard on an answering machine leads Briscoe and Curtis to a confessed murderer and the home of wealthy Carl Anderton, whose stubborn non-cooperation with the district attorney threatens to create a serious miscarriage of justice.

The investigation into the shooting of a newspaper columnist leads to a murder case from two decades earlier and involves a suspect who at that time had been a juvenile.

Detectives Briscoe and Green probe the strangulation of a college coed who moonlighted as a stripper, and while they believe a pair of drug-dealing skinheads committed the murder, they struggle to determine the motive of the strip club owner who paid them for the hit. However, as they work their way up the ladder of complicity, the cops learn that the slaying is keyed to an insider trading scam that forces Assistant D.A. McCoy to connect a former porn star with a businessman.

A stock analyst's murder leads the detectives to a corporation whose stock had fallen ... and plenty of suspects in the investors.