Pediatrician Shen Qiu found an abortion surgery slip in the pocket of her husband Chen Mo. The patient turned out to be her tumor patient Zhou Xiaoyu. As the investigation deepened, the mask of the "perfect husband" suddenly collapsed: Chen Mo not only took care of his critically ill old love as a "husband", but also extended his demonic claws to his biological daughter - he switched medicines, faked allergies, and turned four-year-old Duoduo into a tool to cover up extramarital affairs. When her daughter's life hangs on a thread due to toxic chemotherapy drugs, Shen Qiu is forced to make a choice within 30 minutes: tear up the sweet lies under the white coat, and carve out a bloody path for her daughter and herself between the scalpel and the law.