Li Huanhuan notices something wrong with the milk that her cohabiting boyfriend, Gu Zeyuan, forces her to drink every night. Upon eavesdropping, she learns that he is conspiring with others to control her through drugs in order to seize the property left behind by her parents. With the assistance of a friend and a lawyer, she secretly gathers evidence and undergoes a medical examination, confirming that her body contains sedatives and endocrine-disrupting components. Faced with the Gu family's pressing demands for marriage and property transfer, Li Huanhuan feigns compliance while using legal means to secure her assets. Ultimately, she exposes the truth and calls the police at the proposal scene, successfully breaking free from control and restarting an independent life.