Støj (2017)

An old lady sits in her living room watching TV. Suddenly a loud noise, a rhythmical constant bump, starts and disturbs the old hags daily routine. She searches for the noise and finds a little girl behind a door. She's making the noise by hitting a single key on her keyboard. Instead of accepting the little girl, the old hag starts a "noise war" where she tries to exaggerate the bump noise. She succeed but not for long.