Possessed:

A terrifying psychological thriller, perfect for fans of Black Swan Who do you trust when you can no longer trust your own mind? Emma's life has always been a struggle, and now that she's been accepted at a prestigious music school, she is determined to excel. But when the impossibly chic twins, confident Sophie and quieter Matilde, come crashing into her life—surrounding her with champagne and parties—they demand Emma's full attention. Then shy Matilde commits suicide and shockingly, her identical twin Sophie flourishes. Now odd things are happening to Emma: blackouts, waking up in strange places, bizarre dreams. Something, or someone, is consuming Emma's mind. Terrified, Emma begins to doubt everything and everyone around her, especially the beautiful Sophie.