In 1997, a murder shocked the city.The victim is Liu Meng, a high-profile young woman, but the murderer has not been caught.For a time, speculation and rumors about this case spread, casting the entire city into a haze.

It is rumored that the murderer is Liu Meng's suitor Yao Le, a down-and-out rock singer.Yao Le disappeared without a trace shortly after the incident and was considered an important suspect who was absconding.However, despite the police's full pursuit, Yao Le seemed to have disappeared and was never caught.

Lu Xingzhi, a young and promising detective, is responsible for investigating the case.He has a very loving relationship with his wife Yang Man. Both of them are children of high-ranking families.One day, when Lu Xingzhi had dinner with Yang Man's parents, he unexpectedly met Yang Man's childhood friend Yang Zhe.Yang Zhe is also a son of a high-ranking official. He had a crush on Yang Man when he was young, but the two did not get together in the end.

Time flies, and it’s 2010 in the blink of an eye.Wei Zhengrong, a senior detective, has cooperated with Lu Xingzhi many times.Although he had rejected Lu Xingzhi's invitation, he still couldn't help but go find out the information out of concern for the case.At the same time, Lu Xingzhi's daughter Lu Anning began to have nightmares, and she seemed to remember that terrible night.

Lu Anning's nightmare brought this old case to the surface again.She began to recall fragments of that night, vague but enough to scare her.Lu Xingzhi decided to re-investigate the case, hoping to find the truth and bring justice to his daughter and Liu Meng.

As the investigation deepened, Lu Xingzhi and Yang Zhe discovered some new clues.They discovered that Yao Le did not really abscond, but was hiding in a corner of the city, changing his name and living an anonymous life.And behind all this, there seems to be greater secrets and conspiracies hidden.

After a series of tracking and investigations, Lu Xingzhi and Yang Zhe finally found Yao Le's hiding place.In a thrilling capture operation, Yao Le was successfully captured.Facing police interrogation, he admitted his crime and revealed the truth behind it.

It turns out that the reason why Yao Le killed Liu Meng was because she knew one of his secrets.This secret involves his family and the entire circle of senior officials. Once exposed, it will cause an uproar.In order to cover up this secret, Yao Le had to choose to kill people and silence them.However, what he didn't expect was that this decision would bring such a huge change to his life.

After the truth of the case came to light, both Lu Xingzhi and Yang Zhe were extremely shocked.They didn't expect that there were such deep secrets and conspiracies hidden behind this seemingly simple murder.They decided to continue their in-depth investigation and reveal more truth.

As the investigation deepens, more truths are revealed.It turns out that Yang Zhe was also involved in this secret.He once had to do some things that went against his conscience for the benefit of his family.However, after Liu Meng was killed, he began to reflect on his behavior and decided to cooperate with Lu Xingzhi to reveal the secret.

In the end, with the efforts of Lu Xingzhi and Yang Zhe, the secret was completely revealed.Those who were involved in this secret were duly punished.And Liu Meng and Lu Anning finally got justice and peace.