During a sky-high auction, an orphan girl named Lin Xiao was thrust into the spotlight because her eyes resembled Su Wan, the deceased wife of President Gu's. Gu Chen, a man who stood at the top of power, photographed her in an absolutely powerful manner, pinched her chin, and declared coldly: "A fake deserves to have these eyes?"
She became Su Wan's "perfect" substitute and was imprisoned in the gorgeous cage built by Gu Chen for his late wife. Wearing her pajamas, using her comb, and imitating her smile, all she got was ridicule and coldness from Gu Chen. However, late at night when she had a high fever, his hot palm was pressed against her waist, and his broken words were heard in her ears: "Wanwan... Don't leave..."
In humiliation and despair, Lin Xiao accidentally discovered clues to Gu's core secrets. She resolves to steal it as leverage to escape. Just when she was about to escape successfully on a rainy night, a strange noise in the basement led her to fall into the abyss. The lights suddenly turned on, and the walls were densely covered with photos of her - Su Wan - before her "death" in a car accident five years ago!
There was a sound of iron chains, and Gu Chen raised his gun against a "permanent substitute contract" with paranoid and crazy eyes: "Sign it and become an eternal shadow, or... Die." Lin Xiao's whole body was cold, and fragments of memory began to surge: That car accident... Whose handiwork was it? Who is she? Is it Lin Xiao, or... The returning Su Wan? When the mystery of identity is revealed and the fire of revenge is ignited, who will ultimately control this deadly game that started with a substitute? And is the paranoid CEO who imprisoned her and fell for her an enemy, or... A fate that she can't escape from?
