Two consecutive homicide cases occurred in the Longshan area, causing a huge response in society. The people were anxious and anxious, and the pressure on the police increased sharply. Subsequently, a '118' major case task force was established, with the main and deputy leaders being respectively in charge of criminal investigationLi Hui, Deputy Director, and Guo Ming, Captain of the Criminal Investigation Police, serve as the officers. Li Hui, who is about to retire in more than ten days, is determined to win this case before retirement, putting a complete end to his lifelong career in criminal law. However, behind the two seemingly unrelated homicide cases lies a carefully designed conspiracy, and the situation is shrouded in mist. Sister Liu Xinxin, who is jealous and resentful, seeks to obtain huge wealth and achieve the goal of framing the same father but different peopleMy mother's younger sister Liu Yu frequently freely switches between Liu Yu and Liu Xinxin's identities. The new and old criminal police released their past grievances and joined forces to investigate, ultimately dispelling the fog.