Non Zero-Sum

The story centers on Yoon Haewon, a vulnerable young man with no family or financial resources, whose only light and emotional refuge appears to be his friend Seo Haeyoung. However, Haewon’s devotion soon turns into a claustrophobic nightmare. When Haeyoung’s true, obsessive, and manipulative intentions are exposed, other "friends" (Ko Taegyeom and Ju Hyunwoo) enter the picture; they discover Haewon’s vulnerable secret and begin to blackmail and exploit him. Trapped in an unsustainable web of psychological violence, power plays, and abuse, Haewon becomes the central victim of a "non-zero-sum game" in which no party involved can emerge unscathed.