Embroiderer Gu Xiuning rents and runs the Embroidery Heritage Workshop, but soon faces a series of disputes as her business partners fight over workspace, tamper with materials, falsify reports, and mysteriously cause a key page of Sample 07 to go missing. She stands firm on her principles of physically registering every item and documenting every handover. Amid edited footage designed to frame her and a series of anonymous pieces of evidence, she refuses to convict anyone based on speculation, instead resolving the disputes through a complete chain of evidence. In the end, she protects the workshop and establishes transparent and fair rules for passing down its craft, proving that traditional embroidery is about more than needles and thread: it is also about the integrity and sincerity of those entrusted with preserving its heritage.