Rylea Schumer is a fourteen-year-old girl with a peculiar ability to see spirits and beings from the shadow dimension. When Rylea moves to Winston Forest, a scenic, seemingly peaceful mountain town filled with friendly faces, nothing is what it seems to be. Marielle Evans, a cunning and troublemaking poltergeist, haunts Rylea's new home and is plotting a twisted scheme of revenge against her younger brother, Everett, whom she blames for her death a year before Rylea's arrival and hates with a burning passion. When Marielle takes over Rylea's body for use in her malevolent plot, Rylea must find a way to stop her once and for all: before she ceases to exist.