In a prosperous city in southern China, the death of Tang Yijie, the director of a development zone, who fell from a building has become a hot topic among citizens.Tang Yijie, vividly played by the powerful actor Zhang Songwen, was once a leader in urban development, but died unexpectedly due to a riot caused by a demolition dispute.The news not only shocked the city, but also attracted the attention of young police officer Yang Jiadong (played by Jing Boran).

Yang Jiadong was determined to find out the truth. After in-depth investigation, he found that the falling case seemed to be inextricably linked to a disappearance case a few years ago.The protagonist of that disappearance case is Lian Ayun (played by Chen Yanxi), an ordinary housewife. Her disappearance has become an unsolved case in the city.Now, the clues of the two cases are gradually intertwined, and both seem to point to unknown secrets.

As the investigation deepened, Yang Jiadong discovered that the case was far more complicated than imagined.Real estate agent Jiang Zicheng (played by Qin Hao) seems to have some interest in Tang Yijie's death, and Tang Yijie's wife Lin Hui (played by Song Jia) and daughter Xiaonuo (played by Ma Sichun) also seem to hide unknown secrets.Each person involved in the case has his own purpose and motivation, and everyone seems to be guarding a secret that cannot be told.

However, Yang Jiadong was not intimidated by these difficulties.Despite being framed, suspended and a series of blows, he still adhered to justice and never gave up the pursuit of the truth.In the end, he successfully uncovered the mystery of “ of the cases within ” of the cases, and brought the truth hidden behind Tang Yijie's fall to the world.

This story not only reveals the complexity of human nature and the dark side of society, but also demonstrates Yang Jiadong's perseverance and righteous character.His persistence not only found the answer to Tang Yijie's death, but also revealed the mystery of Lian Ayun's disappearance.The case became a turning point in the city's history, triggering profound reflections on fairness, justice and power.

In this intricate story, the outstanding performances of actors such as Zhang Songwen, Jing Boran, Qin Hao, Song Jia and Ma Sichun allowed the audience to deeply feel the emotional fluctuations and mental processes of the characters.They used superb acting skills to present this story vividly and thought-provokingly.