On her wedding day, Shen Zhiyi is forced face-first into a cake by her fiancé's female best friend, and a rigid stick pierces her eye. She desperately begs for help, but her fiancé thinks she simply can't take a joke and even holds her down himself. It isn't until the wedding ceremony begins that he discovers the woman he loves most is already lifeless. The forensic doctor reveals that she could originally have been saved, but nobody believed her cries for help. From that moment on, the once-proud and deeply devoted man plunges into an abyss of regret. He repeatedly investigates the truth, publicly admits his guilt, and fights to clear her name, but he can never win back her forgiveness. His lifelong journey of atonement has only just begun.