Mystery Miscarrier is back, as are the results of her tox screen. House is pleased to report that his patient is not an innocent rape victim, but a guilty little sex-having liar! She continues to insist that she hasn't had sex in a really long time, and reports that she has a new symptom, which she proudly states is "a rash. On [her] butt." She shows it to House, who looks at it just a little longer than he probably has to before diagnosing it as a carpet burn. A sex carpet burn. That lady has the most conspicuous sex life ever. House starts to believe his patient, and asks her if she has any condition in which she could have sex without knowing it, like multiple personality disorder. House needs to stop watching General Hospital's lead-in show, One Life to Live, where at least two main characters have MPD as well as names that allow their personalities' names to closely resemble their real ones, thereby making things easier for everyone. It turns out that you can make, like, seven thousand names out of "Victoria." Mystery Miscarrier says that while she hasn't been getting very refreshing sleep, she can account for every minute of her day, and none of them involve having sex. Not that that really means anything if she does, in fact, have MPD. Mystery Miscarrier also says that she's been stressed out lately, since her ex-husband, who just happens to live in the apartment below her, is always calling her about the "mixed signals" she's been sending him, even though she's made it perfectly clear that she wants nothing to do with him. House tells her to make a trip down to the hospital's sleep lab.
The Senator gets an MRI of DOOM, which is observed by the entire opening-credits cast. House isn't too pleased to see that Cuddy somehow tracked them down. She claims that she just "followed the scent of arrogance," which is obviously a lie since every single doctor in that hospital probably emits that same smell to some degree, so narrowing it down to one person would be impossible. The MRI finds some enlarged lymph nodes and a liver cyst, all of which the Cottages will be checking out in biopsies even though they probably don't mean anything. Vogler enters the room to gloat over how the Senator's case wasn't as simple as House initially thought it would be, and also to give House a list of "key points" he is to cover in the speech. He would have been there sooner, but his attempts to follow the scent of arrogance kept leading him around in circles. House notes that Vogler's list is fourteen pages long, and sure to put the entire audience in a coma before they can hear about how comas are one of the new drug's possible side effects. Vogler stupidly tells House to add a few jokes if he wants to spice his speech up a bit. Uh oh. Vogler shuffles off, and House asks to speak with Chase alone. Uh oh.