A doctor seeks legal help to prove a young prostitute was murdered. With Isla Blair, Stella Gonet, Ewan Stewart.

Greg's investigation of Julie Tate's death puts him in danger; Dr. Sangster learns of a drug operation; Katherine collapses.

Katherine learns there is a leak within the practice; Joss confesses wrongdoing to his father; the drug kingpin is nabbed.

Greg defends a man who changes his plea to not guilty after confessing to the murder of his wife.

The establishment wants McCandlish to go free, but Greg is unconvinced of his innocence.

Greg discovers the serial killer's identity, which could convict McCandlish and hurt Sarah.