Clara Crawford saves Mitch Thorne. They fall in love, get engaged. Her twin Hannah attacks her out of jealousy; during a fight, both fall, Hannah dies, Clara injured, receiving Hannah's kidney. Mother threatens Clara, forcing her to live as Hannah. Mitch, believing Clara dead and Hannah the killer, marries "Hannah" to torment her. He doubts "Hannah". Tess Sinclair stirs trouble. Conspiracies exposed, Mitch learns "Hannah" is Clara. He seeks atonement to win her back.