The team deals with an organ donor whose organs prove fatal, and the two surviving patients. Meanwhile, House hires a private detective to spy on Wilson, but hears a few things about himself that he'd rather not.
Quest roles:
Kal Penn(Lawrence Kutner), Michael Weston(Lucas Douglas), Denice Sealy(Nurse Gibbs), Tyler Patton(Neurosurgeon), Felicia Day(Apple), Tim Conlon(Dr. O'Shea), Michael Gaines(Morgan), Eric Kaldor(Frank), Elaine Kagan(Frank's Wife), Mark Beltzman(Tibalt Oyylant), Melissa Loprire(Girl on Street)