A slow wind blows on this dark October night. Every year is always the same, kids trick or treating, cheap decorations.

On this night, it's different. Massacre Mansion rises from the dead tonight and no one can stop what it unleashes, until the morning light comes to shun them to hiding.

Every 3 years, these monsters surface. Clowns, Slashers, Moss man, the lost village children, the ghost wife and the zombies. All their mayhem is never stopped, no one can break the curse of halloween in Simpson