Behind the bustling city, there are always some shadows quietly growing, just like the case in 1997 that pushed Liu Meng, a dance hall dancer, into the abyss of fate.As time went by, when the death of another dancer Wang Nannan in 2010 once again touched the nerves of the police, unsolved cases and hidden pain came to mind like a tide.

Liu Meng, this name attracted widespread attention in the case that year.As a dancer, she bloomed with youthful glory on the stage of the cabaret. However, a twist of fate made her the victim in an unsolved case.The first suspect in the case, Hong Kong star Huang Jiajie, made the case even more confusing.Huang Jiajie's halo and Liu Meng's tragedy are intertwined, becoming the focus of public attention.

Time flies, and the members of the criminal police team have also undergone tremendous changes in the baptism of time.The former criminal guard Zhengrong has left this post, but Lu Xingzhi continues to stick to the front line of criminal investigation.However, his personal life experienced huge changes. After divorcing his wife Yang Man, he raised his 16-year-old daughter Lu Anning alone.The breakdown of his family did not break his will, but instead strengthened his determination to pursue the unsolved case.

Wang Nannan's death made Lu Xingzhi realize that there might be some connection between the two seemingly unrelated cases.He began to re-examine the 1997 case, trying to find new clues.As the investigation deepened, he discovered some shocking facts, which were not only inextricably linked to Liu Meng's case, but also involved Huang Jiajie's secret past.

In the process of tracing, Lu Xingzhi not only had to face misunderstandings and doubts from the outside world, but also faced pressure and challenges from within.But he always firmly believes that as long as there is a glimmer of hope, he cannot give up the pursuit of the truth.His persistence finally allowed him to uncover the truth of the unsolved case, making the fate of Liu Meng and Wang Nannan clear.