In a quiet neighborhood in Seoul, Hyun-soo lives a monotonous life as an accountant, trapped in the routines of work and loneliness. Everything changes when his young and beautiful sister-in-law, Ji-min, temporarily moves into his home after a painful breakup. The situation becomes complicated as Hyun-soo begins to notice that his sister-in-law is not only seeking comfort but also a deeper emotional connection. As they try to cope with the pandemic of loneliness surrounding them, they both start sharing intimate moments that challenge family norms and expectations.
The atmosphere becomes increasingly tense and electrifying as their bond intensifies, leading them to an emotional precipice. Hyun-soo finds himself torn between his genuine feelings for Ji-min, his loyalty to his brother, and his desire to follow a moral path. The film plays with the tension of forbidden desire, as they both grapple with a fate that seems to inevitably draw them together while their past ghosts threaten to unleash chaos.
With a bold and provocative approach, this psychological thriller explores the boundaries of love, attraction, and betrayal, leading viewers to a climax that will make them question what family truly means and how far one would go for love.