The novel tells the story of Jin Weimin's transformation from a teacher to a policeman. His wife Li Xiaomin paid a heavy price for turning into a police officer. Jin Weimin fulfilled his duties in his new position. Suspended for losing his gun, he went deep into the underworld to recover the gun and resume his duties, and then worked hard to help solve major crimes. There are emotional twists and turns again, and a happy family is achieved. At work, he is passionate and selfless, and does not change his face in the face of money and beauty. He stayed by the river for a long time without getting his shoes wet, showing his persistence and growth in career changes, emotional twists and turns, and complex social environments.
