Karla, a young medical student, is desperate to find a cure for a genetic, terminal sleep disorder affecting her brother Blake. She agrees to participate in experimental treatment being carried out in an abandoned underground hospital, led by trusted father-figure, Robert.She soon discovers long lost tapes that reveal sinister secrets about their mother's death from the same genetic condition passed on to Blake, and after a series of terrifying and tragic events point to the supernatural, Karla – a self-professed atheist – comes to the conclusion that the only cure may be an exorcism. The person she trusts the most, however, has other ideas...