Lily Adams is in her bed working hard on her college assignments. When her phone rings, the last person she expects a call from is her teacher, Kristen Scott. Kristen is having a party at her place for some of the students and faculty and has called to invite her as well. Lily is almost done with her homework and figures what the hell, she agrees and hangs up the phone. When Lily gets to Kristen's house, Kristen greets her and tells her to come in. Lily finds the house empty and is immediately weirded out.