Taub and Chase talk to the mother and stepfather. Taub claims the melanoma might have had some vague effect, so he needs more information about the biological father. The mother admits it wasn't melanoma that killed him. Because he's not actually dead! He's just living two towns over under a different name. And she doesn't want to tell Ben, because it's better he think his father is dead but decent. Taub has his thing about the importance of biological parents.
In the cafe, Wilson tries to convince House that he'll have to invite someone else to the fight. House is perfectly happy with both of them watching at home on television, but if Wilson goes, House insists on going, too. Somehow. Wilson talks about House's parents, and House steals his sandwich. I would have thought that a year in prison would at least have cured House of his compulsion to steal other people's lunches. I imagine it's not taken as lightly in the can.
Park and Taub bother Ben's father on location at the front door of his crummy apartment. He claims not to have a son "anymore." They offer to take him to a different hospital to test his bone marrow, and he appears to decide that if he can't see Ben at PPTH, he doesn't have a son after all.
Chase and Adams bond while doing vague medical things. Chase used to get locked in his father's study. Adams admits that her parents didn't make their money legally. She spins a tale of high stakes poker and narcotics. When she gets to the slave trade, he appears to start doubting her. Then she grabs his phone, which has House on the other end. House tries to spin this as Adams not being able to trust anyone, but she was obviously correct not to.