The Ghosters gang is surprised when a Halloween haunted house is actually haunted.

Theresa and Kerry's drama class project is to turn an old abandoned house into a haunted house for Halloween as a fundraiser. Elbie and Joey, not wanting to miss out on the fun, volunteer to help. Ghosts and other scary things are their expertise, after all.

While turning the house into a spooky haunt with witches and ghouls and fun scares, they discover a ghost has followed them from Elbie's family mortuary. On top of that, they encounter a dark, menacing ghost in the basement. They find out that the ghost who had followed them had murdered his wife with a knife in that house and the murder weapon has never been found. Faced with a pair of ghosts and a missing knife, the gang needs to solve the spooky mystery before the haunted house is open to the public.

Pull away the cobwebs and join Elbie, Joey, Theresa, and Kerry as they pursue their most scary ghostly mystery yet.