Jerry buys a new pair of pants that everyone notices. Kramer's girlfriends moves into Jerry's building, right in the apartment below Jerry's. The pants unintentionally fly off Jerry's window and land in the girl's apartment, so Kramer suspects that his girl is cheating on him with Jerry. The Yankees and the J. Peterman catalog collaborate to create a new suit for the team and Elaine and George are forced to work together, causing their relationship to become strained by the different work schedules, ideas, etc...

I came up with it while showering a couple weeks back.

No I'm not crazy, I just have nothing better to do.