Your dial emergency service and successfully request police attend to help at the place you describe. While you wait for them to arrive, you stand and look out the street facing window in the lounge room. Nothing is visible in the darkness. You feel anxious now. In your mind you consider how many times you walked past this place without noticing it. Will the police even find this place? If they do, will they even be able to help?

It's easy to hear the arrival outside from the silence of this house, though you can't see anything, you hear two sets of footsteps approaching. There is a knock on the door.

The door is still closed solid. The people knock again, "Hello, is anyone home? We received a call from someone claiming to be trapped here. If you are there, please respond."

You yell back, "I'm here!" but no one responds. In fact, you couldn't even hear your own voice yelling. You bang on the door but it goes unnoticed. Again the people outside that you assume to be the police announce that they need a sign before they can do anything. You run to the nearby window and tap it, the people outside seem not to hear anything.

Your mind seems to scream internally, that this is your last hope. You need to get their attention somehow before they leave.