Evil Artifact in Church is Doorway to Hell

by Chad
(North Carolina, USA)

There's a horror film where a church has some artifact in it that emits evil and starts killing people.

At the end of the movie a woman is pulled through a mirror by a demon which saves everyone else. She allows this as she is either possessed or by free will.

Also, throughout the movie there is a replay of a home video that pans the entrance of this church.

All we see is glowing smoke throughout the film except for the end. At the end we see either the girl that went through the mirror or a demon.