Christina Scherer

Derek and the attendings go out to celebrate when he gets the grant he needs for his clinical trial; Meredith and Alex must fend for themselves during the night shift.

Alan and Lyndsey introduce their mothers (Holland Taylor and Georgia Engel) to one another, so that they can have more time together. Meanwhile, Jake and Eldridge enlist Walden to drive them to a high school house party that they never find.

Moretti and Pierce are called upon to solve a crime in their own backyard when a college student is killed in her dorm room. Pierce is forced into the uncomfortable situation of interacting on a personal level with more than one of his students, which forces him to confront difficult truths about his own past. The case comes just as Moretti is beginning to re-evaluate her relationship with Dr. Hathaway (guest star Jamie Bamber).