Episode 117 of "Buffy, the Vampire Slayer"
s06e17 Normal again
Title: Normal again
Original Air Date: 03/12/2002 on UPN
Director: Rick Rosenthal
Writer: Diego Gutierrez
Guest Stars: Kirsten Nelson (Lorraine Ross), Michael Warren (Doctor), Sarah Scivier (Nurse), Rodney Charles (Orderly), April Dion (Kissing Girl)
Plot Outline:
After being poisoned by a demon, Buffy comes to believe that she is confined to a mental hospital, her mother is alive and her parents are still together and that her life as a Slayer was all an hallucination for the past six years. Deciding that she prefers this 'normal' life with her parents a whole lot more, Buffy attempts to kill the things that tether her to the 'fantasy' life of the Slayer: the Scoobies.