A genius micro-expression expert and a top profiler are forced to cooperate due to a serial disappearance case. The two are naturally at odds with one another, one analyzing external flaws and the other analyzing internal motives. Until the ultimate goal of the pursuit points to the male protagonist's twin brother who has been missing for many years.
· Heroine: Min Xing (observer who captures behavior)
· Male protagonist: Yan Ci (the interrogator who deconstructs speech)
Intention: None