Girl meets her monster cousin?
A girl goes to stay with her grandmother who tells her that she has free reign of the house just dont go in the basement. The grandmother goes to the store and the girl hears a nouse coning from the basement. She opens the door and a monster of some sort comes out and wants to play tag. It is her cousin Herman. The grandmother comes in and says she told her not to go in the basement and now herman has a friend. It ends with herman chasing her around the house.