Robert Jackson is convicted of murdering five women. A day later, another woman is killed in a similarly brutal manner. The detectives fall under pressure when questions arise about how Jackson had managed to slip through the police's net.

As Mowbray and Henderson head for trial, it appears that someone has been providing the prosecution with inside information. A senior police officer advises Mowbray to place truth over loyalty in the courtroom. Outside the courtroom, the killing continues.