The family is introduced and the first people that are introduced is Kris and her twin sister Lindy, the rest of the family is the mom, dad and Barky the family dog.
There's a house next door that's being built and they both decide to check it out. They went through the front door and then went upstairs. They got upstairs and they looked around. When leaving they heard soft rapid footsteps downstairs.
Kris and Lindy then go outside and look around to see if there was anyone following them. Lindy then wandered off without Kris knowing. Kris decides to start calling her name. Kris then sees Lindy in a dumpster and sees a body, but it's just a ventriloquist doll.
Kris saw the closet door open, and watched Slappy walk out. Kris got up and followed him onto the stairs, they started to push each other. Lindy got up and saw them fighting, she yelled to get her parents. Slappy then fell still until the parents left.
That night Lindy and Kris decided to barry him in suitcase. The next morning thier mom has the same suitcase and Slappy on kitchen counter when they come down. They are shocked by it. Thier mom is mad about the dummy and what they did.
Slappy then becomes alive again. He tries to kill Barky, the girls grab ahold of him and drag him outside. They go next door where the steam rollers are, Slappy then gets out of their grip and runs. When he runs he trips and a steamroller runs over him and squishes him.