Four hours before a fatal surgery, a devoted doctor gets a second chance at life. In her first life, she collapsed during her mother-in-law’s operation, only to wake up blamed for the woman’s death. Her husband and his mistress turned everyone against her. Now, she remembers every detail. She changes the surgeon, investigates the suspicious couple, and prepares for the moment they expect her to fail again. But this time, the woman they thought was dead walks out alive—and their entire scheme is exposed.