After suffering a near-death experience as a young girl, Darby Harper gains the ability to see dead people. As a result, she becomes introverted and shut off from her high school peers and prefers to spend time counseling lonely spirits who have unfinished business on earth. But all that changes when Capri, the Queen Bee of the school’s most exclusive clique, unexpectedly dies in a freak accident, resulting in the obvious cancellation of her upcoming “Sweet 17.” Capri, however, pleads with Darby to intervene and convince Capri’s friends to proceed with the party as planned. To escape the wrath of the undead diva, Darby must emerge from her self-imposed exile and reinvent herself in Capri’s image, which means befriending and sucking up to the very people she previously shunned. Warning: Some flashing-lights scenes in this film may affect photosensitive viewers.