When Mrs. Pringle pushes victims into Rodney's room the door to the room opens out toward her wig shop, however, when seen from inside the door opens in toward Rodney's room.
When Kathy is trapped in Rodney's room the stand holding the "wig" made from Dawn's hair changes places around the room.
All the murders look incredibly fake with obvious makeup showing and the victims blinking/breathing, when they are supposed to be dead.