Kids in the neighborhood to a fancy dress. The ghosts come knocking on the door. By focusing on a house with a lantern pumpkin decorations. (It is implicit welcome them) and asked, "Trick or treat?" The landlord has the right to treat with the surrender. Delivering candy to ghosts (Children) As if technicians terrible trick or respond to challenges to those wildly ghosts. It could be anything From tongue sticking haunted eyes How to destroy the little things may end up eventually treat children with candy.