Naismith manages to track down his wife, Dunbar's ethics are challenged, and McDowell makes a discovery that puts Sarah's life in jeopardy.

Katherine Dunbar begins to think McCandlish might be innocent when the police discover that his wife's cause of death is the same as the Street Killer's victims. McDowell starts to investigate Smith's techniques.

When a Crown Prosecutor is arrested outside court for the murder of his wife, he calls upon McDowell to represent him in court, even though he has pled guilty to all charges.