Outside All Purpose High. Inside the girl's bathroom, Donna bitches at KC for bringing those weird guys into her house. KC begs Donna to believe her, but Donna is dismissive: "About what? Bloody Mary?" KC keeps begging, and Donna swings toward the mirror and says, "Bloody Mary, Bloody Mary, Bloody Mary," while KC pleads for her to stop. Donna swings back toward KC and says, "See? Nothing happened." When KC expresses a cuckoo level of alarm, Donna spits, "There really is something wrong with you."
KC walks slowly down the school hallway. The soundtrack's metallic creaks and whining indicate that Horrible Long Black Hair Woman is somewhere on the screen, but the lighting is such that it takes a rewind to find her. Metal Teeth Chomp.
Chemistry lab. KC takes this appropriate moment, the one immediately after she freaked out about her friend's Bloody Mary incantation, to take out a mirror to check her make-up. And, wait. Also inappropriate? Taking out your compact in the middle of freaking chemistry lab. Feminism needs you, too, honey. As she peers into her compact, she suddenly sees inside it the reflection of Horrible Long Black Hair Woman, all bedraggled and, well, hairy, and starts royally freaking out and screaming. By the way, this chemistry lab is apparently being taught by Olivier Martinez (you know, the hunky used bookstore owner in Unfaithful. Speaking of which, my life could have turned out so much differently if my high school chemistry teacher looked like that. Maybe I wouldn't even have gone through that whole sensitive-ponytail-guy phase. Oh, who am I kidding, I came of age in the goddamned nineties, that was unavoidable.)
Ooookay. So KC is freaking and freaking the whole class out. She sees Horrible Long Black Hair Woman in the glass partition inside the classroom, picks up a stool, throws it, and breaks the window. When Hunky Chemistry Man finally grabs her and tries to get her to calm down, she looks at him, and sees Horrible Long Black Hair Woman in the reflection off his Rivers Cuomo glasses. She screams some more and runs out of the room.The Metallicar drives. Sam blabs on the phone with someone while Def Leppard's "Rock of Ages" plays in the background. Sam hangs up and relates that he was just talking to Mary Worthington's brother, who willingly told some total stranger that the mirror was in the family for years until he sold it "one week ago." To an antique store in Toledo. How conveeeen-yent. Dean asks whether there's an old superstition that says mirrors can capture spirits. Sam wonder-kills for a good long while, but basically says "yes." Then Sam asks, "How could Mary move through like a hundred different mirrors?" Um, as far as I can tell, you two have never much cared for the whole "physics" part of demon hunting, so why start now? Dean agrees and simply grunts that they need to find the mirror and smash it. Sam's cell phone rings, and I really wish we could have heard what was coming from the other end, because I think it would have been like, "Aaaaaahhh gggaaaahhhh, eeeeeeee, noooooooo!" Obviously, it's KC.