Joan's father enters the hospital unexpectedly; Chandler takes a practice run for the Boston Marathon that proves dangerous; and the Craigs host Ehrlich's wedding with guests such as Mrs. Craig's mother and Ehrlich's alcoholic aunt Charice.

Ehrlich tries to deal with his Aunt Charice and her romantic designs on Dr. Westphall as he crams for the National Boards; a stressed-out Armstrong makes a tragic misdiagnosis; White chooses to take a polygraph test before his trial begins; Shirley tells Cathy that she ""asked for it"", and Cathy's past is used to decimate her on the witness stand.