Disappearing Nightly

I'm not a heroine -- I just play one.
Also psychotics, vamps, orphans, hookers, housewives and -- on one memorable occasion -- a singing rutabaga. It was never my ambition to utilize my extensive dramatic training by playing a musical vegetable. However, as my agent is fond of pointing out, there are more actors in New York than there are people in most other cities. Translation: Beggars can't be choosers.
This explains how I wound up painting my body green and prancing around stage half-naked the night Golly Gee, the female lead in the off-broadway show Sorcerer! disappeared into thin air. Literally.
Now other performers are also vanishing, and a mysterious stranger is warning me: There is evil among us. But the producers want me to take over Golly's part.
Looks like I'm going to need a little magical help if I want to keep my starring role . . .