Li Ge and Ah Guo are very good brothers. They were born in a poor family and their mother was seriously ill. Their days were very difficult. Both brothers are social workers, but they have different personalities and their styles of doing things are quite different. Li Ge is mature and stable. He has great prestige among rebellious youth. When his men, Ah Jiu and others learned that Li Ge's mother urgently needed money to treat the disease, they took the risk and did not hesitate to rob to raise money for Li Ge. Li Ge naturally rejected Ah Jiu's kindness, so Ah Jiu wanted to return the stolen money to the original owner, but in the process fell into the net, and Li Ge's mother also died because of the unfortunate death. In grief, Li Ge resigned from his job. Tong and Ji Zai are friends of Tinky. They want to undergo sex reassignment surgery, but they are short of money, so a group of friends gathered together to help them. One day, Tinky found the diamond ring left by Longsao in the toilet. Under some strange circumstances, she took the diamond ring, but it led to the disaster of murder.