Ritszel in his movie Reverb cleans view of audial perception. He introduce the viewer to his laboratory, spread through whole city. Process of the civilization has been reverse and for a moment, receiver gain privilege of sharpen hearing,. Sounds act on the same rules as they act in horror movies. They grow from what is known. They grow stronger and stronger, minute after minute. They become powerful and than they spread. Dynamic of the horror movie shows, that what scarry the most are not perfectly design monsters but minor, accumulative sounds. Creak of slowly opening wordrobe doors,expending floor planks under footsteps, TV which swich on itself, scraping, grating, crashing, and the most, sudden, ominous, dead silent.