Halloween III: Season of the Witch
Dr. Daniel Challis and Ellie Grimbridge stumble onto a gruesome murder plot once Ellie's novelty-salesman father, Harry, is murdered while in possession of some halloween mask made by the Silver Shamrock mask corporation. Even the corporation's owner, Conal Cochran, wants to go back Halloween to its roots using his own masks and also his own unspeakable plot would unleash destruction and death .