"Betty" is a 1900's woman who likes to wake you up at 2:36 a.m. by shouting your name. And heaven help you if you paint the walls the wrong color.
A stalker watches a family for months. The stalker gains the confidence to move into the family’s home. For reasons undetermined, perhaps the exposition of their “haunting”, the stalker becomes a murderer. After the murders, the evil or insane murder lives in the home for a few days as though it is their own. Wears the clothes of the victims, eats their food, sleeps in their bed.