As people start to attack Mark and Alec, all of a sudden Trina screams, Stop it!
Surprisingly, everyone stops. You know, the crazy people who have no minds? They actually stop fighting.
Trina then convinces everyone that Mark and Alec are there to help them, and that Trina is one of "them" now.
She's lying, but she's doing a good job of it.
Then, in silence, Mark starts leading everyone up the stairs nice and slowly. Meanwhile, all of the crazy people are making jokes about them and telling Deedee she's pretty and such.
Seriously? This scene is creepy.
Once Mark gets to the hallway upstairs, he sees his chance: the door is wide open.
He makes a dash for it, but everyone in the house collapses against him and his friends. It's a free-for-all.