While Susan continues to undergo dialysis, she is stunned when her flighty mother, Sophie, along with her aunt Claire, pays a visit but won't agree to get tested to see if she would be a potential kidney donor candidate. Meanwhile, not knowing where biological daughter Grace is causes Gabrielle to turn her feelings of loss into an obsession, and Lynette exacts revenge on Tom after she learns about his past with Renee. Bree tries to befriend a friendless Beth Young.