On full-moon nights in Yunzhou, there is always the scent of blood-stained cinnamon.
Accidents occurred one after another on country roads, and young lovers were attacked. Only a dried golden cinnamon petal was left at the scene, which was the murderer's death mark.
Forensic doctor Lin Yan examines physical evidence with cold eyes and identifies the real culprit with corpse speech;
Su Qingyuan, the leader of the Criminal Investigation Squadron, leads the team with a hard core and pursues the case with an iron fist.
The two sisters join forces to face the high-reflective reconnaissance serial killer, tearing through the layers of fog under the full moon, and uncovering the phantom hidden in the cinnamon.
Mission: The French Open is ruthless