Qin Wan meets Chen Zhe at a bar, and tragically has her kidney removed and loses her life. Through four rebirths she constantly breaks the deadlock: on her first try she seeks help from Police Officer Luo Fei, and though the murderer is captured she is still killed halfway; on the second try she reports to the police in advance, learns that the gang has harmed four women in two years, and stays temporarily at the Luo family home to avoid danger, only to be killed again after naively trusting her hypocritical ex-boyfriend Zhou Er who shows fake goodwill; on the third try she testifies against Zhou Yang, using her own body as bait to gather evidence, but the operation fails and she dies a miserable death; on the fourth rebirth she returns to two years before the incident, coinciding with Luo Fei's younger sister Luo Ting becoming the first victim. Qin is determined to save people in advance, joins forces with Luo Fei to track down the criminal case, grows fond of each other during their time together, and finally successfully marries.