When Cristina Lopez, a Mexican-American reporter, goes to her ancestral homeland of Veracruz for a story on witchcraft and faith healers, it's not long before she's kidnapped by locals. They claim that she is possessed by a demon and must exorcise her before they can set her free. As she tries to find a way to escape, she slowly comes to believe that they may be telling the truth. So along with her captors and estranged cousin Miranda, her fight for survival turns into a fight for her soul.