Katelynn Pierce is the older sister of Katherine Pierce. Katelynn is just like her, deceptive, manipulative, and a liar. Katelynn is also a doppelgänger just like her sister Katherine is to Elena Gilbert. Over time Katherine and Katelynn grew hating each other and went their separate ways after Katelynn tried to kill Katherine. But what happens if Katelynn were to return to Mystic Falls right when everyone was least expecting it?