whats this movie called?

The movie was about these 5 people who were captured by a guy, one of them was a girl who was blind. she was the only one able to walk around the house, clean, cook for the capturer. each one of the 5 people have a specific movement that can do some
thing, but with all the movements together can bring back the dead. the blind girl told her story to these group of kids. at the end there was a school shooting, and the kids did the movement dance thing to save the school.

I dont remember who the actors was, but hopefully that description helps.