Projection

When 13-year-old Gretchen Harris's mother is murdered at Gretchen's 8th Grade graduation party, everyone in the town of Delphi, California, suspects a power struggle within the Oculus Society: Delphi's version of the Junior League.  Gretchen's best friend, Jessica Shaw, might even hold the key to finding the culprit withThe Plotinus Ability: the Oculus Society's jealously guarded secret power to trade souls, which hinges on a kiss. Gretchen's hope at finding the murderer ends in tragedy when Ariel Miller—the class outcast—stalks Gretchen and Jessica and surreptitiously films them exchanging a kiss to test if the Plotinus Ability is real, not knowing their motives. The ensuing YouTube video ("Popular Girls = Secret Lovers") goes viral, Gretchen's and Jessica's lives are further shattered, and they vanish from Delphi.

Flash forward two years later: Ariel is suddenly the most popular junior in town, but wracked with guilt over what she did to Gretchen and Jessica.  When both girls reappear after their mysterious absence, Ariel finds herself pawn, suspect, and key player in their scheme to bring the murderer to justice.