The Listeners

Claire and Kyle discover a group of other people who not only can hear the hum but want to embrace it; however, Kyle's mother finds out about their meetings.

Claire finally loses herself in the hum as the outside world closes in on the group. One last group session ends in tragedy.

Final episode. Siobhan turns up at Jo and Omar's house, demanding they send Kyle out. When the group refuse to cooperate, she calls the police. As the outside world closes in on the group, one last session ends in tragedy...