Qin Hanzhou and Lu Yiming knew each other since childhood. Later, something happened to Lu Yiming's family. He moved to another city with his mother and changed his name to Lin Ang. Fifteen years later, he returned to his hometown to become a policeman and met Qin Hanzhou again. At this time, Lin Hanzhou was a policeman who was both good and evil. The two solved the case together, and Qin Hanzhou worked hard to become a good person for Lin Ang.
Purpose: Solve the case