House finds out that Martha has been chatting with Thirteen online, so he sets up a fake rendez-vous amoureux, date for them, where he goes instead of Martha.
When Cuddy's mother is admitted to Princeton Plainsboro and wants House off the case, House must come up with non-conventional methods to treat her. In the process he uncovers secrets which Arlene has hidden from Cuddy and her sister Lucinda...