Best Little Horror House in Langley Falls.After years of hosting the scariest haunted house in the neighborhood, Stan finds himself outdone by a former design and development specialist for Disney theme parks named Buckle (first seen in An Apocalypse to Remember). Francine makes things worse when she finds herself returning with wet pants and declares that it is impossible to beat him. Depressed, Stan goes to Roger for advice and Roger suggests he use his CIA influence to get real body parts and instruments. Stan decides to pull in five of the most dangerous serial murderers in the area. However, the killers sitting in their cell fails to scare anyone so Roger decides to turn them loose, forcing Stan, Francine, Roger and Klaus to take cover in the kitchen. Meanwhile, Steve and his friends take Akiko trick-or-treating while a frustrated Toshi refuses to take up the samurai costume his mother got for him. Toshi eventually does wear the outfit, only to chase down Steve when he fails to hold a promise with him. After Steve defuses the situation, Toshi leaves him alone and instead takes out his rage by brutally murdering the five serial killers after they chase Stan, Francine and Roger out their house all the way to an abandoned factory. Roger brings home one of their severed heads as a souvenir.