Right after the scene where Marcy is shaving her legs in the bathtub, and her skin starts to peel off, she puts on her red bath robe and runs outside, barefoot and bare-legged, screaming. As Marcy looks around, the scary dog growls and sprints toward her. She then hurries to the shack [where Karen is sleeping] for safety. As she is trying to unlock and open the door, the dog jumps on her and begins ripping her apart. The screen fades into a red, blurry filter, and you can still see Marcy's red bath robe, but this time, she has a pair of blue jeans on! Unless she changed while I blinked, this is an obvious slip-up! It is obvious that this was a stunt man, and that the editor of the movie rushed through this scene!