The doctors form two teams to operate on conjoined twins; Bailey uses Meredith as a buffer between her and Ben; Alex learns a tough lesson; Teddy asks Cristina about Henry's surgery.
Jane and Maura are brought into the world of Keltic writings by the murder of a rare bookseller, Maura prepares Jane to meet her new man, and Angela's relationship with Cavanaugh changes.
While treating a patient they think is a hypochondriac, Foreman and the six fellows seem to learn more about themselves than about the patient; Cameron and Chase gamble on which candidate House will cut next.
The Red Cell team must track down a suspect who is kidnapping young mothers; Beth discovers why this particular case hits close to home for Mick.