It happened that Dong Yao's favorite rainy day caused her to encounter the most unbearable nightmare in her life. She only felt numb. She even didn't know whether it was good or bad when she saw the monitor, Gu Qing, coming to the hospital to visit her. Rumors spread, and the repressive environment made Dong Yao, a high school student who grew up dependent on her grandmother, at a loss. She seemed to have made the wrong choice between swings. In this rainy season in this northern industrial town, the young and promising female criminal police captain Bai Lu and her partner Gao Lei still hold on to their beliefs and do their best to investigate this serial murder case. In this long dark night, can we still have hope?
Concept: Even in a small town shrouded in unreasonable malice, there are still a group of ordinary people living with faith, romance, and ideals.