Michael Parks guest stars as MacDane, a college professor who for years has been a good friend of Sgt. Ed Brown (Don Galloway). Now MacDane is "persona non grata" on campus, due to the suicide of a female philosophy student for which the professor is held responsible. With someone making anonymous death threats, MacDane turns to Ed for help--which of course brings Ironside onto the scene to sift through a malaise of contradictory clues and sinister secrets. ~ Hal Erickson, Rovi