Su Xiao, a new community police officer at Linjiang Road Police Station, is timid and avoids trouble. His greatest wish is to get to work and back home safely, and raise his young sister.
Everyone thinks he's easygoing and ordinary, until a string of seemingly trivial neighborhood cases begins to unfold:
Missing packages, misaligned surveillance cameras, water stains appearing late at night, objects moving for no apparent reason...
Others dismiss them as petty annoyances, but Su Xiao sees the patterns at a glance, thanks to his astonishing eye for detail.
Three small cases, one hidden thread. Four crime scenes, the same mark.
Mysterious gears begin to surface. Someone is secretly laying plans, scouting locations, and watching, turning the entire city into a chessboard.
Jiang Ruotong, a sharp and spirited policewoman transferred from the municipal bureau, makes an unexpected discovery:
The most timid beat cop in the station is the one who sees through the truth best.
One timid, one spirited; one calm, one incisive.
Starting with everyday cases, they gradually tear open the elaborate web of schemes hidden beneath the shadows.
Su Xiao only wants a peaceful life, but he's forced onto the path of a master detective.
The darkness has yet to fall, but the conspiracy is already in motion.
When the gears start turning, no one can stay out of it.
