On the eve of the wedding three years ago, the bridesmaid died tragically in the villa. All evidence pointed to the groom Lu Yan. The bride Su Nian regretted the engagement on the spot and sent him into the abyss with her own hands. Three years later, Su Nian accidentally discovered a button that did not belong to the crime scene and coldly restarted the investigation. She deduced that the murderer was someone else, but step by step she uncovered the betrayal of her best friend, the infighting of the family, and the revenge of the housekeeper. When the real murderer Lu Jingchuan was arrested, Lu Yan knelt in front of her and burst into tears: "You never believed me, but I still love you." Holding the DNA report proving Lu Yan's innocence, Su Nian finally collapsed - she ruined not just a wedding, but two lives.
