Plot

A physician who gave up her career comes in for treatment, leading to tense encounters with the team. Meanwhile, Cuddy exacts revenge and Foreman's choice has devastating consequences.

A chef was giving a tutorial in a restaurant, where an assistant was making smart-aleck remarks about his instructions. She suddenly started breathing heavily and coughing, before calling out some of her own symptoms. She said she was a doctor and she needed a doctor.

Thirteen (Olivia Wilde) woke up in bed with Foreman (Omar Epps), who teased her about drooling.

Wilson (Robert Sean Leonard) was doing dishes in the morning, but left a green mug on the counter with a lipstick mark on it. He looked at it as he dried his hands and walked away.

House (Hugh Laurie) arrived at the hospital to find the elevators broken. He climbed the stairs. The team told her about the patient, Dana Miller (Judith Scott), a cancer researcher. Kutner (Kal Penn) walked in and said he'd taken the elevator. Thirteen had already told him it was working fine when she arrived earlier.

Dana told Thirteen and Taub (Peter Jacobson) she'd quit her medical work because she wasn't happy. She was learning how to run a kitchen because that was what she wanted to do and it made her happy.

Cuddy (Lisa Edelstein) showed House video of her baby on her computer. He asked her about the elevators crashing. Cuddy said, "Elevators can be capricious; sometimes it just seems like they're out to get you."

He asked why they'd be out to get him. She said because he was the reason she had to be back at work -- because he wouldn't listen to Cameron. "Congratulations," she told him. "You've officially brought me down to your level."

The doctors all discussed Dana's decision to quit her cancer research because it wasn't making her happy. House said everyone is motivated by self-interest -- they were all there because it made them happy. House asked Foreman if Thirteen knew he slipped her the Huntington's drug. "You said that would be stupid," Foreman said. "There's nothing to know."

Foreman was running Thirteen through some tests. She said she had a headache, which led Foreman to ask questions. She said she'd been on the drug for weeks, "it's not like something's just going to crop up now."

Taub talked with Dana and told her he missed being a plastic surgeon, but his new job was fulfilling and made him feel like he'd done something worthwhile that day. She said she missed that, too, but it just wasn't enough. She then said something didn't feel right and Taub injected a syringe into her stomach and said it was filled with blood.

First her lung deflated, then her liver started to bleed. House was walking and talking with the team when he tripped and fell through his doorway. Someone had set up a trip wire. The team wondered why he wasn't obsessing and knew he must already know who did it.

House noticed something happening with Thirteen, but didn't say anything. He told the team to run some tests on the patient. He told Foreman privately he had a problem. He'd noticed Thirteen turning her head to look at an MRI, which meant she was losing her peripheral vision -- probably because of the Huntington's drug.

Wilson wondered what House's response to Cuddy would be, but House said he wasn't going to because the only way to get through this war would be to lose and move on. Wilson noticed House's patient was Dana Miller, then went to ask why she quit.

"How is someone like me supposed to keep fighting when someone like you just walked away?" he asked her. She said people were mad at her for leaving her job, which she said was easier for them to do than to admit they were stuck in a rut. She asked him, "What's your rut?" He said nothing.

At home that night, Taub asked his wife Rachel (Jennifer Crystal Foley) if she thought they should have kids. She reminded him she'd told him 10 years ago she didn't want kids. She said she still didn't want to. He said he was OK with that and she turned the TV back on.

Foreman admitted to Thirteen he'd just switched her drugs the previous weeks. She said she'd stop taking the drug and "everything should be fine." She then went on trying to do her work as if nothing ever happened. She told Foreman she didn't think she was "ready for that," referring to the fact he'd broken trial protocol to give her a drug he didn't even know would work.

Foreman went into Dana's hospital room and saw she was still scratching the side of her head. (She'd done this earlier, when Wilson went to talk to her). He noticed she had scratched through her skull and brain matter was leaking out.

House, who'd left his cane hanging on an overhead fixture, ordered an MRI after the team couldn't agree on the cause of the itchiness. When House reached for his cane, it was gone.

Foreman told Thirteen he wanted to do an MRI on her to try to explain her worsening headaches after going off the treatment. Foreman looked at the screen and said, "Oh, God." Foreman told House that Thirteen had a tumor. He said he was going to the drug company to find out if the same had happened with other patients. House told Foreman to wait because if she still had the tumor, she'd need him to have a medical license. Foreman went to tell Thirteen about House's recommendation and found her leg bleeding because she fell over a table. She couldn't see anything.

House spent the night sleeping on a couch in Wilson's office because, "Apparently Mrs. House called the utility company and told them we were moving," House said. There was no heat or power.

The patient experienced some kind of spinal shocks before the MRI began. Taub suggested a spinal hemangioma might explain her symptoms. "Go find it," House said.

Thirteen sat alone in her apartment when House walked in. He noticed she couldn't see. She told House that Foreman was on his way to the drug company. House admitted he told Foreman to switch her drug if he loved her. He told her to call him and tell him to turn around if she actually felt something for him. She dialed the phone.

Wilson told Cuddy she was physically hurting House. "That's the point," she said.

Wilson said if she was miserable with House, she should fire him and go be home with her new baby. She said she liked what he does for the hospital. "What he does is who he is," Wilson said. "And the same goes for you."

Foreman and House were giving Thirteen a dose of radiation. Foreman was feeling bad about everything he'd done. He said she never considered her in his equation.

Taub and Kutner knew something was going on with Foreman and Thirteen. On Dana's MRI, they found masses everywhere.

"The irony of it," House said. "Maybe she wouldn't be sick at all if some other cancer researcher hadn't gone home early."

House told them to have Wilson do a biopsy. Kutner said no. He knew something was going on with Thirteen and he wanted to know what it was. Taub decided to go ask Wilson to do the biopsy. Kutner stayed behind and asked House if Thirteen's headache was not just a headache.

Wilson apologized to Dana, while doing the biopsy, and told her she was right -- he was stuck. He said he was still living in her apartment and left all of her things in place. She said, "The only wrong thing is to do nothing."

He inserted a massive syringe to do the biopsy and she said, "That's not supposed to happen."

Kutner was in Thirteen's room, trying to come up with some options. Thirteen said Foreman didn't get to torch his career to pay for his sins. Kutner called Foreman a hypocrite because he didn't ask Thirteen if she wanted to be on the drug, but was letting her call the shots about how to deal with her new problem. Thirteen said she'd feel worse if he destroyed his career.

Wilson said the type of cancer they thought Dana had doesn't bleed, but she'd started bleeding when he did the biopsy. Then, Taub got paged because Dana's heart stopped. "What causes that?" House wondered.

As Kutner and Taub responded, Kutner thought he'd successfully gotten her heart rate back down. But Taub noticed she was suddenly bleeding from her nose -- and her eyes.

The doctors could barely keep up with her blood loss. House wanted them to cut off the blood supply to the tumors. That would risk killing healthy cells around her lungs, but he wanted them to do it anyway.

Cuddy gave House his cane. She apologized for acting like a jerk. He said she wasn't doing the job well before the baby came along. She said he was just going back to play the part he thought he was supposed to play.

While blaming Cuddy's mood swings on "Aunt Flow," House had his epiphany. He went into Dana's room and explained to Taub and Kutner her surgery from eight months earlier for a myoma must have resulted in a cut in her uterine wall. Every cut of scalpel resulted in endometrial cells spilling into her bloodstream. They multiplied and when her uterus was supposed to swell, all the organs that those cells adhered to swelled. That was why she was bleeding everywhere.

"Yes, ladies," House said, "I am blaming her period. Granted, this is the worst period ever. Although, frankly, not by much."

House said they could cut out the masses and everything should be fine. Taub said they couldn't do the surgery until her cycle was complete.

Foreman touched Thirteen's hand and said he was sorry. She could see him. They hugged.

Taub talked to Dana and told her she'd almost died for the second time in eight months. "How are you feeling about your life choices now?" he asked.

He said he worries that on his death bed, he'll regret not doing anything great. She said he'll spend one day on his death bed. "The other 25,000 are the ones we have to worry about," she added. "Go to bed happy tonight."

Foreman, meanwhile, made a call to a Dr. Schmidt and said, "The trial isn't going too well."

House found Foreman in the locker room and knew he'd spilled the beans. He had to pull Thirteen's data from the trial and if anyone else gets a tumor, they'll have to put a warning on the label. Also, they'll come after him if he tries to participate in any more trials.

Taub couldn't sleep and his wife asked if he could be happy without a kid. "I don't know," he said. "I know I can't be happy without you."

Thirteen and Foreman were in bed together and she teased him for snoring.

Wilson was washing dishes and, after a moment of hesitation, grabbed the lipstick-marked mug and washed it.