Criminal investigation captain He Chao only believes in evidence when handling cases, but he partners with Ling Bai, a genius consultant with a mysterious identity who relies on "intuition" to solve cases, and solves many secret cases. Until a serial murder case, all clues point to Ling Bai's secret past. Chasing the murderer in the dark night, murderous at every step, the two were entangled in suspicion and attraction - until he pushed him against the wall of evidence: "Are you an accomplice, or are you the only person I want to protect?"
Purpose: Use crime as a mirror to see how trust transcends evidence and how love penetrates shadows.