[Criminal investigation suspense + hard-core detective + dark game + delayed justice] A report was received at 110 on a rainy night that Qin Qin, a girl from Lanyuan Villa, was humiliated and jumped off the building. The village denied the existence of this person, and the superior ordered the investigation to be suspended. Later, a video of Director Zhao Hongji bullying Qin Qin was circulated on the Internet. Zhao committed suicide and claimed that Qin took money and left. Qin's father's search for his daughter, the old case of forced demolition of the villa, and the fact that the proprietress Mei Fang was Zhao's lover were exposed one after another. The task force investigated, but Qin's whereabouts were still unknown, and the real murderer remained a mystery.