Having the skillset of a detective, Wang You Cai intended to take a hiatus after retiring from his role as a police officer. However, his plans were thwarted when his friend passed away under inexplicable circumstances. As a detective, Wang You Cai resolves to unravel the mystery surrounding his friend's death. Along the way, he crosses paths with Zhen Meng, a woman who belongs to an enigmatic organization. Together, they confidentially delve into uncovering the truth behind a multitude of other unpleasant occurrences.