Other people rely on experience at a crime scene. When Zhou Wen steps into one, he can see the evidence “speak” for itself.
At three in the morning, what seems like an ordinary break-in turns into something else when he spots a pale red label above the foot of the bed: [Moved]. Seven seconds later, they push the bed aside and uncover dried blood. The burglary case instantly becomes a murder investigation!
His mentor, Song Zhiyuan, had his life ruined five years ago by a mistaken judgment from the System. Since then, he has trusted physical traces, not machines. The new recruit Zhou Wen, meanwhile, has eyes that can catch hidden clues: a bed that's been moved, a window that's been forced, an incomplete shoeprint, a glint off a blade, a place where a body was hidden... Suspects think they can get away with murder by wiping off their fingerprints, never realizing that every step of their cover-up leaves a flaw for Zhou Wen to spot.
A body hidden in a red-brick building is found and the case cracked in three days. A five-year-old fall-death case is reopened. The real culprit behind his father's paralysis ten years ago finally comes to light. A severed finger, a limp, fibers from a miner's glove, a bloodied cigarette butt: every clue points to a quiet cobbler in the shantytown, Old Que.
But when Zhou Wen finally sets his sights on him, he realizes this man is no ordinary repeat offender. He's a killer who hides bodies and knows how to evade investigation, all while keeping perfectly calm.
And what he's really hiding may be more than one life.