In the dark corners of bustling cities, violent debt collection spreads like a cancer. Young police officer Lin Yu, with his excellent criminal investigation ability and resolute character, was selected to perform a secret undercover mission, going deep into the violent collection gang and uncovering its evil. During the undercover process, Lin Yu battled wits and courage with the gang members, and faced dangers again and again, but he was always able to avert dangers with his wisdom. At the same time, he met the kind and brave reporter Su Yao, and the two gradually fell in love during the investigation. However, the particularity of Lin Yu's identity made this relationship full of twists and turns. As the investigation deepens, a huge conspiracy hidden behind it comes to light, involving many forces in the political and business circles. Whether Lin Yu can complete the task in this complicated situation, and whether he and Su Yao can overcome many difficulties hand in hand, have become the biggest suspense of the story.
Concept: Urban suspense