Foreman decides to start at Kaplow's Pawn Shop, Jane's sketch of which is their only clue besides the barf-soaked items in her bag. He shows a guy a Polaroid of Jane, and the guy says he doesn't recognize her. Then he sees Foreman's nice jacket and says he remembers a lot more.
A jacketless Foreman prepares to check out Jane's little corner of the world, as shown to him by the newly-outfitted homeless man. Foreman lifts a tarp, and ten bats come flying out of it and into his face. Foreman freaks. "They're just bats," says the homeless guy. Easy for him to say when he's got a barrier of microsuede between him and those little bat teeth. It turns out that Foreman would touch a homeless woman's home with a ten-foot pole, as that's what he uses for his investigations into her bat cave. He finds a folder full of papers.
Back at the office, Cameron informs Foreman that the MRI showed no brain tumor, and Chase adds that that means they went and did surgery on Jane just to keep Foreman from getting in trouble with Cuddy. Yes, but can't they also use the pin to identify the patient? I know I saw them do that on C.S.I. or Dr. G, Medical Examiner once. Every surgical pin has an ID number on it that you can trace. Anyway, House and Wilson enter the office, and House immediately notices Foreman's lack of coat. Foreman shows them the pictures, saying that they might give them some clues as to Jane's identity. House grabs one and says it looks like Philly to him. We see that it's actually a desert scene right out of a paint-by-numbers book. House says the cacti look like a car accident and the water indicates that it happened in October of 2002. "My goodness! Was she okay?" Wilson asks, playing along. House says she broke her arm. It needed a pin. And House has that exact pin in his hand. Turns out that he watched the same episode of whatever forensic science show I did, because he used the pin to ID the patient. Foreman's all hurt because he thought House insisted on the MRI to Cuddy to protect Foreman. Jane Doe is actually Victoria Madsen, who I'm sure will be shocked when someone tells her about her sister's recent Oscar nomination. Foreman checks out an incoming fax and lets out an "oh, CRAP!"