Intro. Lee Seunggi, a steadfast senior surveyor with a marriage that has grown stagnant, finds himself on a business trip to Busan with Karina—a marketing prodigy whose ethereal beauty is the talk of the office. Under the melancholic Busan sky, Seunggi’s professional coldness begins to waver. Karina is not just a "living doll"; she possesses a sharp intellect and a hidden loneliness that mirrors his own.
As they scout remote locations for new developments, the boundary between professional duty and forbidden desire blurs. Amidst the sound of crashing waves and the sting of soju, Seunggi faces a dangerous crossroad. While his wife, Mina, represents stability and a quiet, childless home in Seoul, Karina represents a vibrant, intoxicating escape. This is a story of a man who has lived by the rules, suddenly tempted to break them for a woman who is as dangerous as she is beautiful. Their secret affair threatens to build a foundation on shifting sands, where one wrong move could destroy everythin