Claire is the popular English teacher at school and maintains a semblance of stability at home and work.One day, she began to hear a low, persistent buzzing sound repeatedly.The sound seemed to come from the wall, the air, and the inside of the body at the same time, but no one else responded at all.She tried to explain to her husband Paul, went to the hospital for a check-up, and paid attention to electrical appliances, neighbors and nearby facilities, but no clear answer was obtained every time she looked.The buzzing did not go away, but continued to invade her life in class, at home, and at night.

The more Claire tries to prove the existence of voices, the more isolated she becomes.She briefly lost control in front of her students, and her patience with her family was gradually exhausted.Daughter Ashley senses the change in her mother but cannot truly understand the pressure she is under.Paul tried to calm Claire, hoping that she would treat it as a temporary physical discomfort or stress reaction, but Claire knew that what she heard was not an ordinary noise.She began to wonder if people around her just didn't want to believe her, and she began to wonder if she was losing her sense of reality.

Just when she was almost driven to collapse by the loneliness, student Kyle said she could hear that sound too.Kyle's appearance gives Claire her first confirmation: she's not the only one hearing.The two talked about buzzing while avoiding the eyes of others. Claire felt a little comfort in the surprise, but also felt a new danger.An adult teacher and student should not be too close, but the shared secret allows them to quickly establish an unusual trust.Claire realized that the buzz was not only changing her perception of the world, it was also changing the distance between her and the people around her.