Ralph's lodge brother, Stanley, is about to marry Alice's sister, Agnes. At the Raccoons' bachelor party for Stanley, Ralph warns the young man not to move in with Agnes's parents after the wedding. But this advice backfires when Agnes shows up at the Kramdens' after the wedding reception, sobbing that her new husband has changed into a "beast". Can Ralph get Stanley and Agnes back together without Alice knowing that he was the one who gave Stanley the advice?