Acupuncture Mystery | Ghost-Free Science: Traditional Chinese medicine practitioner Lin Yan only takes pulses, never cuts people open. The needle marks on a corpse are his only testimony. His grandfather's dying words: The Thirteen Ghost Gate Needles can save others, but not yourself. Touch the Death Gate and you'll suffer backlash. Lin Yan doesn't believe in ghosts or gods. He only trusts the pulse.
Late one night, a deathly pale woman barges into the Jishi Hall clinic, which is about to be demolished. One needle makes her spit out a hollow needle stained with blood. The next day, she dies suddenly. The forensic doctor finds a needle mark in her heart. When the police arrive, they reveal that the victim was an executive at the Su Group's eldercare and wellness division. The last suspect is the highly respected traditional Chinese medicine practitioner Su Bancheng, the junior apprentice whose hand tendons Lin Yan's grandfather severed himself all those years ago.
To clear his name and search for his father, who has been missing for ten years, Lin Yan is forced to pick up his needles again. He never cuts people open, only takes their pulses. The needle marks on a corpse are his only testimony.