在东海市，名 Lesser-Known Detective Li ren sets foot in the tranquil town of Jianghu, tasked with unraveling a perplexing antique heist case. Staying at an eerie hotel room, where a prior guest met a mysterious end, he finds himself as the next victim, murdered in a locked chamber on his first night. His sister, Li Lizi, is immediately cast under suspicion as the primary suspect.
Determined to expose the truth behind her brother's death, Li Lizi embarks on a relentless quest for justice. The only clue at hand: a verses by Li Bai, "The moonlight at my bedside seems to be frost upon the ground." Just as she begins her investigation, a crucial piece of evidence goes missing, adding another layer of mystery to an already enigmatic small county teeming with intrigue.
As the police, hotel owners, staff, a mysterious female guest, local thugs, burglars, treasure hunters, runaways, and many more characters emerge, a twisted web of borrowed swords and betrayal unfolds. Trust and suspicion, loyalty and deceit, all take center stage as an elaborate game of cat-and-mouse ensues. The answer to Jianghu's puzzling case lies hidden among its shadows, waiting for the right person to uncover it. Will Li Lizi find the truth before it's too late?
江城谜案影评