Michael Nagy

While casting a magic spell to help Anya regain her powers, Willow and Anya inadvertently summon Willow's evil twin, a vampire, from an alternate universe.

Sydney becomes infected with a mind-altering and potentially deadly hallucinogen, causing her to slowly lose touch with reality. Vaughn and Jack must scramble to find an antidote before Sydney's hallucinations, paranoia and resultant violent behavior threaten her life and the lives of those around her.