Answer the following question: Generate a question that has the following answer: Margo for the following movie plot: Ilene and Bert Fisher move into a quiet suburban neighborhood with their daughter Cindy. The Fisher's marriage has been on the rocks for the past few years for Ilene's promiscuity has driven Bert to a state of near-alcoholism. Wanting to get familiar with their new neighbors, Ilene and Burt attend a swimming pool party at the home of the wealthy Ron Elstrom. Ignoring the presence of the other guests, including Ron's wife Margo, Ilene succumbs to the advances of Ron and has sex with him in a bedroom.In the weeks that follow, Ilene and Ron's secret affair heats up as the Fishers and Elstons join a third couple, Fran and Marty Conley, whom appear to be the perfect conservative suburban family complete with raising four kids, but they are in fact closeted swingers. The three couples partake in drunken parties at each of their houses which eventually leads one evening to them playing a form of roulette in which the prize is someone else's marital partner.Outraged by everyone's immorality, including his own, Bert demands to Ilene that they move out of the neighborhood, but Ilene refuses for she has quiet confidence that Ron will divorce Margo and marry her to make a new life for themselves. But one evening, when Ilene confides in Ron about her choice to leave her husband, Ron makes is clear to Ilene that his interest in her is only physical and that he has no intention of breaking up his family.Depressed over this turn of events, Ilene takes an overdose of sleeping pills, but is saved from death by Burt and their daughter, Cindy, who find her in time and rush her to the hospital. In the final scene, as the Ilene and Burt resolve to try to save their marriage, the debauched Ron and Margo, Fran and Marty, look for new participants in their continuing game of suburban roulette.
Answer:
Who is Ron's wife?