Intern doctor Lin Nianyao drunkenly slept with her direct supervisor Shen Yuheng, and fled in a panic, only to have her good best friend Xia Yi impersonate her and usurp her life. Lin Nianyao and Shen Yuheng's feelings grew stronger through daily interactions, but she learned that her best friend repeatedly tried to kill her. This time, Lin Nianyao decides to fight back.