Demonic Ending Explained [SPOILER!]

SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!

SPOILERS AHEAD

Demonic Plot Summary and Synopsis

A young woman unleashes terrifying demons when supernatural forces at the root of a decades-old rift between mother and daughter are revealed.

Source: Wikipedia (CC BY-SA 3.0).