A new teaser trailer debuted for Knocking, Frida Kempff’s psychological horror film set for release in theaters on October 8 and on digital / on demand on October 19.

The film that premiered at Sundance Film Festival stars Çecilia Miloccco, Albin Grenholm, Alexander Salzberger, Krister Kern, Ville Virtanen, Charlotta Åkerblom, and Naida Ragimova.

After suffering a traumatic incident, Molly (Cecilia Milocco) moves into a new apartment to begin her path to recovery, but it’s not long after her arrival that a series of persistent knocks and screams begin to wake her up at night. Molly’s new life begins to unravel as the screams intensify and no one else in the building believes or is willing to help her.

Watch the trailer for Knocking. See the first teaser trailer for Knocking.