A murder case was solved with neat techniques. Apart from the deceased, only an inconspicuous butterfly sticker was left at the scene.
Interpol captain Lu Yan thought the case had been settled, but he was shocked to find out during file comparison that this butterfly sticker had already appeared in an unsolved case many years ago - a serial murder that went unnoticed for several years.
Yu Tang looked professional and reliable, but something didn't feel right when he came into contact with the case.
He has a dual personality, and his memory is always fragmented. The more I check, the more something is wrong:
How come the murderer's methods, obsessions, and even small details match up with the vague fragments in his mind?
Yu Tang sentenced himself on the spot: Damn it, maybe I really killed him.
So while pretending to be a consultant to investigate the case, he was careful to hide secrets and focused on extreme self-protection.
Lu Yan saw him looking dazed and acting abnormally every day, and his doubts were almost overflowing, but he didn't believe that this person could be the murderer.
Purpose: No matter how many pieces the darkness tears people into, there is always someone willing to love you completely, believe in you, and work with you to recover the life stolen by trauma.