The red lines in the world are broken, darkness is entangled, and obsessions are growing everywhere. Behind the scenes, there is an organization that disrupts order - Duan Yuan, which specializes in devouring negative emotions and cutting off fate. They hide behind every red line and encircle and kill the line enforcement teams that repair the red lines. After their various obstructions, the line enforcement teams have been almost destroyed.
In an emergency at the Yue Lao Temple in Heaven, Hip Hop Red Line Yue Lao broke the rules and recruited talented ordinary people from mortals to fill the line execution team. This time, four ordinary people who had never met before were assembled to form a temporary red line repair team.
The library archivist, Su Yan, can rely on the telepathy needle to read emotional memories; the police officer Shen Zhixian is good at analyzing and reconstructing true thoughts; the environmental design intern Ling Xi can decipher the traces of red lines according to the environment; and the fitness coach Lu Jin has the power to destroy evil.
After listening to Yue Lao's explanation, the four people started to enter various red lines to deal with the abnormality for their own reasons...