A mute mother had swapped her daughter with the heiress of a wealthy tycoon. Eighteen years later, after being robbed of a life of luxury, the true heiress was then pressured by her biological mother, Mrs. Smith, to donate a kidney. On the day of the surgery, as Mrs. Smith anxiously waited outside the operating room, she finally discovered the truth. However, it was too late to undo the damage. What will happen next? How will Mrs. Smith find her biological daughter?