First, I didn't see this movie. My sister told the story to me. But she forgets the movie's name. Here is the story:
In a village/town, there is a glass building/hotel. No one will even go into that building because devils/spirits/evils are living in it. If someone enters into that building, the rooms automatically change every 2 minutes. When they change, if any devil is in the same room with a person it will kill them.
Hero's family come to that town to stay there. His kid plays with a ball and that ball accidentally goes into that hotel. SO this kid also goes into that building to bring back his ball. Now the hero's family also goes to that building to save their kid. They have some special equipment to see the evils and to kill them. Movie climax is that the boy safely comes out of the building, but his family has some injuries.
This is the story my sister told me. Any guess?