Shogo Higuchi is a detective whose wife was murdered by a serial killer. Hikari Tachibana is a voice profiler whose father was murdered. She has a special hearing ability which allows her to hear minutiae sounds that other people do not.
Detective Higuchi Shogo and Emergency Command Center Leader Tachibana Hikari continue to work together to save victims and catch criminals as quickly as possible. They face an evil criminal, but the criminal is not a simple evil person. The criminal exhibits exploding anger, which some younger people have against society. Younger people feel the criminal's behavior is not just a crime, but like representing themselves.