Ye Nanxing, a nurse at a top-tier hospital, discovers that the rheumatoid drug "Qingfeng Powder" has deadly flaws—patients are dying of multi-organ failure. Suspecting the medicine has been tampered with, she teams up with undercover investigator Gu Linyuan, disguised as an orderly. They expose the drug as a diluted biologic mixed with metformin, implicating deputy director Lu Tianqing in a profit-driven scheme with pharmaceutical companies. When Ye Nanxing is threatened and her mother dies myst Show More Show Less