When three people are brutally murdered in a shop in central London and a fourth left for dead, Matt and Ronnie are up against the clock to find the killer, who they fear could strike again at any moment. The nature of the attack was frenzied and brutal with the killer using a bayonet to slay his victims. With this information and a photofit, Matt and Ronnie are quickly must identify the killer before they strike again. However, things take an unexpected turn when James Steel learns that the defendant charged with the crime has brilliant legal support, and James' only hope is to convince a deluded defendant to accept responsibility for his crimes.