movie title question people in glass house?

I watched a bit of a movie on a plane, and I was wondering what the title was. All I saw was a woman going into a bathroom and washing her face from the bathtub, but during that same scene it showed the room being bloody and a woman in the tub watching the other woman. Another scene was where a boy was running away from a bloody person, then seeing a kid with half of his face burned off. During the movie, it showed a machine of sorts with gears turning. Does anyone know what movie this was?

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