René Auberjonois returns in the role of Frasier's esteemed mentor, Professor Tewksbury. Having long idolized and idealized the good professor, Frasier (Kelsey Grammer) is shocked by the likelihood that Tewksbury has spent the night with Roz (Peri Gilpin). Elsewhere, Daphne (Jane Leeves) calls in a professional "spookologist" (Fisher Stevens) to prove to Niles (David Hyde Pierce) that she has psychic powers. ~ Hal Erickson, Rovi