One

Woozi, the notorious mastermind criminal with a deceptively innocent doll-like face, was finally caught and confined to a high-security asylum. His brilliance now hidden behind the cold, sterile walls, he spends his days under the watchful eyes of the institution's staff. Among them is Kwon Soonyoung, a psychiatrist whose outward cheer belies a chaotic, almost dangerously logical mind. Their paths cross, a meeting of Woozi's cunning intellect and Soonyoung's unpredictable rationality. In this tangled web of sanity and madness, who will end up controlling whom?