One girl, two lives. Which is real? When Ella wakes up one Monday morning, she discovers that she is not herself and that her life is not her own. She looks different, her friends are no longer her friends and her existence has been erased from the internet. Even worse, years of her history appear to have been rewritten overnight. And yet, nobody else thinks that anything weird has happened. Desperate to cling on to her identity and to piece her life back together, Ella attempts to uncover what has happened to her. Does she have amnesia? Is she losing her mind? Or is she the victim of something more sinister?