This was the part that caused my wife to scream. It was also the part that finally broke me. I was keeping a stiff upper lip until this scene and I immediately became a whimpering baby. Regardless of the story, the last 15 minutes or so of the film are masterful in terms of just a constant onrush of horror built up over the course of 70 minutes or so.And damn, if noticing that the mother was there on the top corner of the screen wasn't just terrifying.