In a series of murders, the corpse was burned into a bone china bride, the bones were cut into a violin, and a blind map was carved on the soles of the feet... Provincial forensic doctor Wei Ze, portraitist Shen Yeqiao and captain Luo Xiao followed the bones to pursue the murderer, but found that all the clues put together a complete skeleton with a missing left temporal bone. Behind the scenes, "Anonymous X" used the victim's skeleton to send postcards, just to force Gu Chi to personally add himself to this art of death. When the silent skeleton begins to speak, the living people are shocked: what deserves to be dissected most is the human heart.