In the morning in the coastal city of Qingning, several unexpected incidents broke the supposedly peaceful atmosphere. The family of Qiao Huaming, a well-known corporate philanthropist in this city, disappeared mysteriously, and the Public Security Bureau took this very seriously. Immediately, the year's task force quickly launched an investigation. There is a private detective detective Lang Xing, who is both wise and brave, careful and bold, and has dealt with suspenseful people countless times. The suspect is also very cunning. The game of cat and mouse in the dark is about to start. When the Chinese New Year is approaching, in order to maintain the stability and order in the society and let the people live a good year, the director issued an iron order, The year must be solved. With the in-depth investigation of the case, various doubts surfaced, and some doubts point to Long Xing's brother, but as a detective policeman, he must fulfill his police duties to protect the safety of the people and let the people feel at ease during the New Year. His brother had to be caught in time, and he couldn't accept this fact in his heart. He suddenly discovered that his brother was not his own, and the mystery of his brother's life experience was about to unfold..