"Monica Anderson thinks her biggest problem is taking her karate-chopping younger brother, Peter, trick-or-treating on Halloween. But she is wrong. After knocking on the door of an old, creepy house the kids are met by a strange woman pleading for their help. The evil Dr. Screem is after five horribly ugly ancient masks. These artifacts have the power to manipulate the world around them. Monica and Peter don't want to help, but they must retrieve...

On Halloween, Sammy and his friends go to the haunted Barlow house where he has a strange, frightening experience, but what he doesn't realize is that he is possessed by a ghost that wants to turn him into a ghost as well.