A young girl and her family go through a horrifying reality while she becomes possessed by demonic forces. Throughout the film we experience the ways a family deals with situations beyond their control and how they fight to overcome them. Only when the possession takes place does the family bond get stronger and the relationships between them get tested to their limits.
The Catholic Church authorizes the use of exorcism for Christians who are believed to be the victims of demonic possession. In Catholicism, exorcism is a sacramental but not a sacrament, unlike baptism or confession. Unlike a sacrament, exorcism's "integrity and efficacy do not depend [...] on the rigid use of an unchanging formula or on the ordered sequence of prescribed actions. Its efficacy depends on two elements: authorization from valid and licit Church authorities, and the faith of the exorcist." The Catechism of the Catholic Church states: "When the Church asks publicly and authoritatively in the name of Jesus Christ that a person or object be protected against the power of the Evil One and withdrawn from his dominion, it is called exorcism."
