Swedish with English subtitles.

When Molly moves into a new apartment after a tragic accident, a strange noise from upstairs begins to unnerve her.

As Molly attempts to settle into her new life, she becomes obsessed with a disturbing knocking sound above her. It could be a call for help or a message in Morse code. As the sound grows in intensity, Molly confronts her neighbours, but it soon becomes clear that no one can hear what she is hearing. While everyone begins to question Molly, including Molly herself, she is thrust into an unsettling quest to uncover the truth in a world where truth and reality appear to be just beyond her reach.

With sharp commentary on stigma surrounding mental health, Frida Kempff has created a suspenseful, mesmerizing mystery that will keep you guessing until the very last frame.