There are a lot of things that make this scene remarkable. At first glance, the suspense is palpable, as the camera cuts from the antagonist (Jack) creeping up the stairs with an axe, to the antagonist’s wife and child trying to squeeze their way out of a window to escape their impending doom. The child makes it out, but as the wife struggles to make it out herself, it becomes more and more clear, as Jack gets closer and closer, that she will not be able to get out of the room. Finally, Jack is right outside the room she is still stuck in, and begins breaking down the door with his axe. This is where the scene reaches its climax, alternating camera angles between outside the door, allowing us to watch Jack swinging the axe, to inside the room, where we can watch the wife’s horrible reaction to each and every swing.