Milo O'Shea guest stars as Dr. Schachter, a "couples" specialist. During this particular session, the good doctor is counseling a most odd couple indeed -- namely, sibling psychiatrists Frasier and Niles Crane (Kelsey Grammer and David Hyde Pierce), whose relationship is in danger of collapsing. In flashbacks, Frasier and Niles woefully recall their foredoomed efforts to save money on office space by opening up a joint practice. ~ Hal Erickson, Rovi