Reviewed by Awilkes
on 01/03/2016 06:45

There is indeed more to what you hear. 20 Hz builds up well mostly because of its plot's use of disturbing sound. Viewer's attention will be captivated by the film's clever use of both sight and sound. At its peak, viewers will keep guessing as to what is causing the disturbance. Afterwards, they would be comfortably disarmed, only to be jolted that there is something frightening inside their room.