Shen Qiwu, the beloved daughter of the imperial physician of the former dynasty, was involved in the secret palace medicine case and her family was destroyed. She was pushed into a dry well and "died". Three years later, she changed her name and entered the palace again as a medical woman. His hand saved a critical illness, his golden needle performed miraculous feats, and the noble person he saved, who knew he wasn't the one who had committed the sin of the past? She knew very well that the Imperial Hospital was no longer a place to help the world, but a place of power and power. With one hand, he saved lives and healed the wounded to win the trust of high officials, and with the other hand, he planted drugs to lead to clues to trace the murder. When the identity mystery is torn open by the powerful prince, and the iceberg of old cases comes to the surface, she decides the outcome with a poison-quenching golden needle: Either she will clear up the injustice for her, or the Phoenix Palace will be stained with blood!