The Simpsons discover the squatter living in their attic is Marge's old prom date and former billionaire Artie Ziff. When Homer wins Artie's stock holdings in a poker game, he is sent to white-collar prison for 'criminal accounting irregularities'.
After a night of passion with Selma, Artie sees the error of his selfish ways and turns himself in to the Securities Exchange Commission, setting Homer free.