Episode Summary
Li Shuting dies in a traffic accident while hallucinating, leading Qi Sizhe to suspect a link to a past case involving a light-attracting drug side effect. While the team investigates a mysterious logo on her medication, a separate case involving a missing woman named Liu Yuanyuan turns grim. Police discover chemically treated human bones near a railway, but forensic assembly reveals the body parts belong to multiple different victims.
Spoiler Alert
A Sudden Death and a Bag of Bones
You think you know where a show is going, and then it throws a truck at you. Literally. We pick up right where the tension left off. Wang Qilong comes through with the lead. Zhu Qingyue and Han Feng manage to track down Xie Yaoqi. She is in bad shape. Someone pumped her full of toxins. Qi Sizhe acts fast and injects an antidote to stabilize her.
But the real chaos happens outside. Han Feng chases Li Shuting. She isn't all there. She is hallucinating a massive spider shadow. She runs blindly. She stops in the middle of the road and stares up at a street light. She laughs and cries at the same time. It’s manic. Then a car comes out of nowhere. It hits her. She dies on impact. Everyone just stands there, frozen.
Old Ghosts Resurface
Xie Yaoqi survives the poisoning. Wang Qilong isn't so lucky emotionally. He has to identify Li Shuting’s body at the morgue. It wrecks him.
Back at the station, the adrenaline wears off and the fighting starts. Qi Sizhe corners Han Feng. He noticed something weird about Li Shuting’s final moments. She was drawn to the light. He asks if Li Yiqi had that same reaction on the rooftop. Han Feng tries to shut him down. He yells that the case is closed and Li Ming is dead. He doesn't want to talk about the past.
Qi Sizhe pushes harder. He brings up Yu Fei. She had that same "phototaxis" reaction—an attraction to light—before she died in the car crash. He reminds Han Feng that Yu Fei loved him like a brother. That hits a nerve.
The Mystery Pills
The lab results for Li Shuting come back. It’s frustrating. No common poisons show up in her blood. Qi Sizhe refuses to let it go. He wants to re-examine the meds found at her apartment. Gao Yuan insists they are just standard bipolar medication. They shouldn't cause hallucinations.
Qi Sizhe spots a tiny detail. There is a strange logo on one of the pill bottles. Gao Yuan has never seen it before.
Han Feng visits Qi Sizhe later. He finally admits the truth. The hallucinations match. But he is skeptical. He doesn't see how this connects to the old "Raw Diamond" case. Qi Sizhe makes his stance clear. He will chase every lead to solve Yu Fei’s murder. He won't stop.
A New Nightmare Begins
Han Feng starts digging into the "Raw Diamond" angle. He talks to Captain Guan from narcotics. He shares Qi’s theory. Someone might be testing a new drug based on the raw diamonds. They are targeting specific people. The victims all show that strange attraction to light.
While they chase that lead, a new file lands on the desk. The Liu Yuanyuan disappearance. She was a bright student who gave up med school to care for her sick mother. She claimed her mother was murdered. Then she vanished. Her friend reported it because Liu bought a knife right before disappearing.
The Puzzle on the Tracks
Police find human bones near the railway. A patrol officer saw a woman's shadow there in the dark. The bones are covered in phenolic resin. That’s industrial stuff used for grinding wheels. Li Xiaoxi discovers Liu Yuanyuan bought strong acids—oxalic and hydrochloric. The bones smell like chemicals.
Qi Sizhe examines the pelvis. It belongs to a woman over forty. It’s a fresh corpse, not an old grave. But the DNA is destroyed.
More parts turn up. Hands and feet in bags. A witness saw someone dumping them but couldn't see a face. The clothing scraps match what Liu Yuanyuan wore. Qi Sizhe and Gao Yuan try to assemble the skeleton. It doesn't work. The pieces don't fit together. These aren't bones from one person. They are dealing with multiple victims.
