A chilling examination of the unknown and sinister world of exorcism in the Catholic Church. Granted unprecedented access, filmmaker Fredrik Horn Akselsen brings the viewer into the secret world of Catholic exorcism. Allowed to accompany one of the few Vatican approved exorcists, Father José Antonio Fortea, we experience the mystical rite through the story of Constanza, a Colombian woman who claims to have been possessed by demons for 15 years. She sees the Spanish exorcist as her last hope for spiritual liberation. Compelling and dramatic, the on-camera casting out of demons is every bit as disturbing as anything Hollywood could conjure up.