The play is still on, and we don't know the final outcome of the dividing line. The play is based on Pan Jun's novel The Suspect, and is based on a theft case of a pawn company. It tells the story of a water delivery man and a policeman from acquaintance to intersection, and finally dealing with the confession of "law and love" as friends.

Ma Dongsheng, a laid-off worker, robbed a "butcher" with his face covered because his daughter Ma Jin was suddenly dying. Li Yong, the owner of this shop, once violently attacked Ma Dongsheng's disciples, and Yu Chao, the captain of Interpol in charge of this case, is actually a relative and friend.

However, this case led to a corruption case and a major drug trafficking case. Chen Zitao, executive deputy mayor of Li Yong's brother-in-law, tried every means to distort the facts and even created a worrying storm.

Unexpectedly, Ma Dongsheng did not escape this pass. He revealed this trick to Yu Chao in the form of an anonymous tip-off letter and promised that he would turn himself in. With the detection of the case, Yu Chao realized that the suspect was Ma Dongsheng.

Thus, it is found that the cause of Ma Jin is actually caused by a "human experiment" of drug dealers' accomplices. Tan Jiping, deputy director of the Municipal Public Security Bureau controlled by Chen Zitao, acts as a "black evil force".

However, Yu Chao's conscientious personality also touched Ma Dongsheng, and he chose to surrender, which was his last hope.