House thinks the levitation is "cool." He's not convinced by the eyewitness testimony of Taub and Adams. Then he does the street magic levitation that he learned from David Blaine. He doesn't think the boy is a magician; he thinks he's the lovely assistant to the grandfather. Then he does some psychoanalyzing of Chase. Park proposes tetanus, which would make the body rigid. Chase goes with hypocalcaemia, caused by the shot they gave him the previous day. And then House announces that Chase had a sex dream about Park.

The mother continues to be skeptical of the medicine, because it hasn't worked so far. She wants to do the exorcism and if they won't let her do it in the hospital, she'll take Lue home. She feels that the man she loved must have been possessed.

Foreman's office. Foreman thinks that it's okay as long as they don't feed Lue anything or put anything on his skin. House thinks it's crazy. Foreman says it's just like having a priest in there. House points out it might involve animal sacrifice. Foreman decides he'll talk to the mother.

And here he is, talking to her! She doesn't want to deny Lue any treatment; she just wants to also try exorcism. She threatens to take him elsewhere if they won't let her do it there. Foreman won't allow that, but she's spoken to a lawyer. Foreman can't say no to her religion. He asks for twenty-four hours.

Dominika is tearfully shouting into the phone. A letter came in the mail. House apologizes, saying he should have told her. "Told me what? I don't understand." Now House asks what's in the letter. It's about an uncle in a nursing home. He hugs her. She asks if he's going out tonight, but he says he could stay.

Lue is still barely breathing. Adams comes in and talks to him. Then she jostles him. Lue can't even squeeze her hand. The mother asks, "You were wrong again?" Adams ignores her. The mother says she's calling Lue's grandfather.

The grandfather performs a ceremony which we can assume is an exorcism. It has a gong!

Diagnostic time! House announces that he doesn't care anymore. If they cure the kid now, the grandfather will get the credit. More worrisome (to House) -- it will result in the mother and Lue both becoming very religious. So, in his opinion, the kid's better off dead. He's definitely more mopey than usual. Taub thinks that once your child levitates, it's perfectly rational to consider non-scientific avenues of treatment. House won't consider the case until the exorcism is finished. Chase proposes Kawasaki, which would explain the irregular heartbeat and the respiratory distress. The team decides it fits and Adams stands, preparing to order a coronary bypass. House rejects it, because it would have shown up on one of the tests already. Do they just never consider that? I feel like we get to the end of these episodes and people are always saying, "What if the patient doesn't have a head?" House is caught up in theorizing and comes up with a patent ductus arteriosus. Taub says Lue isn't an infant and hasn't had any symptoms for eight years, but House has the usual dodge about how they accidentally treated the infected ductus with antibiotics. Adams says that's a billion-to-one chance, House points out that by that logic, there ought to be seven people on the planet who match this theory. But what about those other hundred Hmong cases from the beginning of the episode? House suggests that maybe PDA is more common than they thought. Adams says he's clearly wrong. But the treatment is just Ibuprofen, so what the heck, right? For once, the treatment doesn't involve crazy invasive surgery. House doesn't want to try it, which Chase accurately reads as a fear of letting one more person embrace religion. House asks if any of them think it's actually PDA and none of them do. So he strictly forbids them from acting on it and they have to continue on the Kawasaki theory and do the coronary bypass instead.