Reggie Bennett

Driving me insane, the movie where there's a chair that a girl takes into a hidden room of some sort, and then she is clothed or something while on the chair, when she arrives in the hidden room after taking this chair on tracks, she finds a book with a key inside, or something. And at the end there's a woman that lifts her head and light comes out, she then explodes into light.. Sorry it's so vague, it's all I can remember.