Dr. Daniel Challis and Ellie Grimbridge stumble onto a gruesome murder scheme when Ellie's novelty-salesman father, Harry, is killed while in possession of a halloween mask made by the Silver Shamrock mask company. The company's owner, Conal Cochran, wants to return Halloween to its darker roots using his masks -- and his unspeakable scheme would unleash death and destruction across the country.
The Canadian policeman Louis Burke is assigned in a jail to investigate the murders of prisoners and jailors. When in jail, Louis, using his outstandings martial arts skills, is able to save his life and make himself respected in that violent world. At least, helped by two another prisoners, he succeded in finding the truth about the dreadful crimes. In a violent and corrupt prison, decorated cop Louis Burke must infiltrate the jail to find answers to a number of inside murders. What he finds is a struggle of life and death tied in to his own past.