Koo Hyo-seo, a new intern at the Marine research institute, faces constant pressure from his colleagues. Assigned to care for an aggressive killer whale shunned by others, he finds unexpected solace in the creature’s presence. But when staff begin to vanish or get hurt, a mysterious man with jet-black hair and pale skin appears. He stays unnervingly close to Hyo-seo, whose fear slowly turns into fascination. As the lab descends into fear and uncertainty, Hyo-seo wonders—could this stranger be connected to the whale? And why does he feel such a powerful, dangerous pull toward him?
