Lynette and Tom uncover the unsettling truth about son Porter. Gabrielle suspects Carlos’ best client, Virginia (guest star Frances Conroy), has ulterior motives. Bree’s moment of weakness could bring her great embarrassment and shame. Katherine’s not-so-little secret is unveiled. Susan learns of Jackson’s true passion. Finally, Mrs. McCluskey’s sister Roberta (guest star Lily Tomlin) unearths a disturbing fact about Dave.