When Monica and her younger brother Peter go trick-or-treating at an old, creepy house, they discover the evil Dr. Screem, who is searching for five ancient masks that will give him the power to manipulate the world.

''Welcome to the Hall of Horrors, HorrorLand's Hall of Fame for the truly terrifying. It's Halloween and Monica Anderson is out Trick-or-Treating with her younger brother. They knock on the door of an old, creepy house and are met by a strange woman who pleads for their help. Every year she must battle for the control of five sacred masks with the evil Dr. Screem. These artifacts have the power to manipulate the world around them. Monica doesn't want to help at first but then Screem bursts in and steals the masks. This sets her and her brother off on a Halloween mission that will change their lives forever!''--,provided by amazon.