2. Denial

Brooks and Devlin investigate the shooting of Dame Rachel Callaghan ( Juliet Stevenson ), a well-known High Court judge, who is shot in the underground car park of her apartment building, in what looks like a carjacking gone wrong. They retrieve the car from a dupe who purchased it, and arrest the middleman in the sale. The middleman blames the crime on a man named Eddie. It becomes apparent that Eddie was hired to kill Callaghan, but his attempt went awry. The detectives believe that Callaghan's husband, Dan (John McArdle), was involved in the murder plot.

However, Callaghan takes steps to defend her husband from prosecution, even when she is presented with evidence proving his guilt. Callaghan eventually has her medication withdrawn, prompting Steel to seek the court's permission to question her before she dies. When Callaghan tries to commit suicide, Steel seeks to have her declared mentally incompetent but Judge Mary Hall ( Diana Quick ) overrules Steel's motion. George is torn between friendship and respecting a person’s right to die as he tries to get Rachel to accept the truth of what has happened.