It's Halloween and the Kramdens and Nortons are going to a bus-company party. They're all in costume: Trixie's a sailor, Alice is an angel, Norton's dressed as Clara Bow, and Ralph's outfitted as a Zulu chief. Ralph hates his costume, though (a top hat, a sweat shirt, and a grass skirt pulled up to his chest), so he decides to rip up his tuxedo and go as an "elegant bum." Freddie Muller and his wife come to pick up the Nortons and the Kramdens and they're dressed to the teeth. Freddie explains that though the party's on Halloween, it's not a costume party--it's a formal dinner-dance to celebrate the boss's birthday. Since Ralph's tux is now in rags, he misses a chance to hobnob with the bigshots, but Norton doesn't consider the evening a total loss: he figures since everyone's in costume, they might as well go out trick-or-treating. (thetvdb.com)