The voice of a police officer is heard, and it is that of a young woman named qingying, who has committed suicide. The police officer opens the parcel left by the young woman and discovers an expensive brand of imported hearing aids. The officer speculates that the girl's hearing problem may have been related to the expensive hearing aids, as she was a singer and could not hear her own voice or even her singing voice, so she chose to commit suicide before receiving the aid. The young woman's father comes to the police station to report that his daughter has died, and the police officer tells him that he must find the cause of his daughter's death.