Chen Mo's intrusion broke the balance of this closed killing. He was passing through this place to track down an unsolved case that had been pending for ten years, but unexpectedly became the "Thirteenth Person" in the game. The death pattern in the villa vaguely overlaps with the details of the unsolved old case from that year. As the playing cards gradually gathered, Chen Mo discovered that there was a password hidden behind each card, which not only pointed to the deceased at the moment, but also involved the grudges from ten years ago.
Before he becomes the next card, he must tear apart the mystery of the owner of the villa and decipher the real purpose of this death game - is it revenge, silence, or cruel questioning of the truth about old cases? When the last card was about to appear, Chen Mo finally realized that he was already the most critical pawn in this conspiracy that spanned ten years.
