After her husband Matthew and his mistress Fiona push the pregnant Grace off a cliff to steal her fortune, Grace's identical twin sister, Alice, steps in. She assumes her sister's identity and meticulously plots revenge against the murderous couple. Just as her vengeance is within reach, a shocking twist emerges: the original Grace, who survived with amnesia and a changed face through plastic surgery, reappears. Her return triggers a cascade of dangerous misunderstandings and tangled emotions, forcing Alice to navigate a revenge plot now complicated by the very sister she sought to avenge.
