Halloween III: Season of the Witch is a horror thriller presented by producer John Carpenter, who also worked on Halloween and The Thing. It is the third film in the Halloween collection.
A terrified toy salesman is attacked and brought to the hospital. He is babbling and clutching the year's most popular Halloween costume, an eerie pumpkin mask. Doctor Daniel Challis is pulled into the mystery.
Daniel works with the salesman's daughter, Ellie, and traces the mask to the Silver Shamrock Novelties company and its founder, Conal Cochran. Together they uncover Cochran's Halloween plan and must stop him before trick-or-treaters across the country never come home.