Zhang Luyi

Tensions brew as a cold case murder intensifies and the lead detective starts to believe that his former classmate knows what really happened.

Li Dong and Li Chun are brothers with completely different temperaments. Though they both live in Beijing, the two have been estranged for many years. One day, while reconnecting at a Japanese restaurant, they reminisce about their beloved childhood sweetheart Liu Chuan. Li Dong convinces his older brother to travel with him to Japan and seek out Liu Chuan, who lives in Yanagawa.

Modern crime drama series following a criminal psychologist and his assistant on their journey to reach the truth through applied psychology.