The main plot follows Jae-sook, a university student majoring in dance, who falls in love with a doctor named Jae-woo. However, Jae-woo marries her older sister, Young-sook, which leaves Jae-sook devastated. After graduating, Jae-sook confesses her feelings to her brother-in-law, leading to an affair. This affair results in tragic consequences, including Young-sook’s eventual suicide. Overwhelmed by guilt and the judgment of society, Jae-sook and Jae-woo escape to a remote island, trying to flee from their sins.
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