By this time it is clear that novelist Jordan Tannahill is not experienced enough to be a screenwriter. It is a different skill to writing a novel. Director Janicza Bravo probably only ended up working in the UK because of the American studios shutdown of the summer of 2023. Both the actors and screenwriters were on strike.
At least Claire and Kyle meet a support group of fellow sufferers. They engage in various theories on what could be causing this humming sound.
However Claire hanging around with Kyle is not how a teacher should be behaving. It is Claire's own daughter who lets the cat out of the bag. Claire is suspended from her school.
The problem with The Listeners so far. It is tedious and embarrassing. The characters in that support group are all stereotypes. The working class bloke, the ex army guy.
As for Claire. I was surprised she did not have strong words with her daughter for sending that text.