Three years ago, Shen Qingci lost his memory in a conspiracy and was secretly changed by his enemies, becoming his own stand-in. Three years later, she was forced to marry Lu Siheng in the name of the illegitimate daughter of the Shen family - and she was the Bai Yueguang himself who Lu Siheng was looking for. On their wedding night, Lu Siheng pinched her chin and said, "It looks like it, but it's not the same after all." She endured, struggled, and was humiliated, but she gradually came into contact with the broken memories in this cage-like house. When the truth is revealed and the substitute becomes an avenger, she will use the most ruthless method to make everyone pay the price. And the man who pushed her into the darkness with his own hands will kneel down in regret and beg for an impossible forgiveness.