Set in 1984, when the war on drugs was at its height, the story concerns a strain of mold developed by the government to wipe out Colombian coca fields. Unfortunately, during a demonstration, the mold gets out of control and proves to be deadly to more than just vegetation.

After being betrayed by love, Jisu believes that man-made garbage reveals the truth about them. One day, she comes across waste that’s been neatly sorted and discarded. It belongs to her next-door neighbor, Woojae. She grows curious about him and successfully approaches him using the information from his trash.