Qin Feng, a talented forensic doctor who hides deep secrets. His glasses not only allowed him to see microscopic evidence, but also to see "psionic traces" that ordinary people could not detect - the remnants of energy from another dimension that lingered at the crime scene.
A series of bizarre murders broke the tranquility of the city: the bride who showed no scars on her wedding night but was extremely frightened, the former postman who suffered a cardiac arrest in a confined space... Each case went against common sense, leaving only strange traces of blue energy and a mysterious symbol at the scene. As a forensic doctor, Qin Feng firmly believes in the evidence; but as a psychic perceiver, he knows that this time, the murderer he faces may not be an ordinary person.
As the investigation deepens, Qin Feng joins forces with the new mysterious assistant Su Wei and discovers that all clues point to a dusty secret government project - the "Mirror World Project." A past disaster caused by trying to open a dimensional passage is coming back again, turning into the flames of revenge and greedy ambition. The victims of the past may become today's perpetrators, but behind the seemingly vicious murderer is a sad sadness and helplessness.
The murderer wanders between black and white. Even if his motives are sympathetic, he still has to face legal trial. Qin Feng must walk a tightrope between science and the supernatural, emotion and reason, and uncover the truth that spans decades. Not only does he have to fight against the powerful forces hiding in the dark, but he also has to face the origin of his abilities and an imminent threat: a dimensional invasion that can tear apart reality and plunge all mankind into unknown fear.