Working as a security guard, Chu Fan accidentally acquires the ability to appraise treasures. He finds a genuine Ming Dynasty doucai chicken cup in the antique street, helps Guanzhen Pavilion owner Su Xueqing find her stolen jade bracelet, and is hired as the chief appraiser of Guanzhen Pavilion. Afterward, Chu Fan successively exposes multiple fake antiques, and even discovers a genuine work by Qi Baishi in the interlayer of a ruined painting. Facing the step-by-step pressure from the Du family, he sees through the fake trap at an auction, takes out the Qianlong imperial seal from the secret compartment of a rosewood treasure chest, and helps the Su family preserve their foundation.