이브의 건넌방, Eves Second Bedroom (1987, 18+)

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