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Having been swapped at birth, Eva Litt returns to her biological family. She soon learns that the one who took her place is not her sister, Zelda Litt, but her adoptive brother, Micah Litt. Even so, their parents continue to favor him as the heir. When Eva exposes his schemes and helps the easily manipulated Zelda come to her senses, the sisters transform from rivals into allies. Together, they join forces to take control of their own fate.