Lynette and Tom uncover an unpleasant truth about Porter that he is romantically involved with the blond, femme fatal Anne Schilling. Meanwhile, Gabrielle suspects Carlos' best massage client, Virginia, has ulterior motives. Bree's moment of weakness with her cookbook could bring her great embarrassment and shame, while Katherine's not-so-little secret is unveiled. Susan learns of Jackson's true passion. Also, Mrs. McCluskey's sister, Roberta, unearths a disturbing fact about Dave when she discovers that he spent time in prison, and that he's connected to someone who lives, or had lived, on Wisteria Lane.