Due to a murder case, reporter Xing Zhen of Hot Weekly had a conflict with Ning Kai, the police chief of the serious crime team. In order to find out the truth that the deceased wanted to reveal before his death, Xing Zhen was rescued by Ning Kai during an undercover investigation. After that, the two cooperated to solve several cases. Later, because the real culprit in the serial murder case was discovered to have resurrected from the dead, and he continued to create layers of difficulties for Ning Kai, Ning Kai was eventually suspended.
In order to catch the real culprit, Xing Zhen reinstated Ning Kai, and despite Ning Kai's objections, he cooperated with Ning Kai's rival Jian Xiao. Finally, with Jian Xiao's help, Ning Kai was reinstated. On the way to track down the real culprit, Xing Zhen, Ning Kai and Jian Xiao uncovered layers of mystery, only to discover that the real culprit had cast a huge net in an attempt to kill all the police officers involved in the serial murder case twenty years ago.
Intention: Believe in justice and pursue light.