A serial murder case reappeared in Jinggang City on a rainy night. During the investigation, detective Lin Qian was shocked to discover that the clues pointed directly to his beloved father. In the whirlpool of lies and evidence, she desperately searched for the devil hiding in the dark, but she didn't know that the devil had already penetrated into her life. When all the disguises are torn away, she must face the cruelest truth: the murderer she vowed to catch may be her own split soul.
Purpose: redemption