In the upcoming episode of the show we will see that a shadow follows Roli in the house. When she tries to look behind and see, the shadow disappears. She initially thinks that it would be an illusion but later a person comes behind her and tries to kill her.
Petrified, Roli shouts and tells the entire family about it. Immediately people from the house try to catch him, but fail in their attempt to do so.
Later we will also see that Roli gets a blank call where she can only hear the breathing sounds from the other end. She panics and is eager to know who is trying to follow her incessantly.