In Hong Kong, a vigilante serial killer leaves death notices, stating when and how he will murder a victim. Even if the victim reports it to the police and receives protection, the killer can easily break through and execute them. In response, the police set up a special task force and reveals a major conspiracy hidden behind.
- Genre: Crime, Mystery
- Studio: Media Asia Films, Screen Media, iQIYI Pictures, Sil-Metropole Organisation, Guangdong Sublime Media, Panorama Entertainment, Tao Piao Piao
- Keyword: based on novel or book, police, serial killer, crime spree
- Cast: Louis Koo, Julian Cheung, Francis Ng, Myolie Wu, Chrissie Chau, Ray Lui