Cha Hye-soo, a blind chaebol heiress, believes she has a happy marriage until a mysterious man named Rak gives her a pair of sunglasses that miraculously restores her sight. The first thing she witnesses is her devoted husband’s shocking infidelity. Hye-soo soon discovers that he married her only for her fortune and has been secretly mocking her blindness. Devastated but determined, she hides the fact that her vision has returned and joins forces with Rak to plan a ruthless revenge against everyone who betrayed her. As their elaborate trap unfolds, Hye-soo finds herself increasingly drawn to her mysterious ally. With the truth finally revealed, her cruel vengeance begins—but can she make everyone who wronged her pay the ultimate price?