After returning to school, Cha Woo-bin is living an ordinary college life until he begins to notice an unpleasant, persistent gaze following him. The source of the gaze is Lee Seo-yoon, a classmate in the same major as his friend Kim Hae-chan.
Observing him in return, Woo-bin realizes that Seo-yoon's eyes are actually fixed on Hae-chan, not him. Learning about Seo-yoon's past as a child actor from Hae-chan, and seeing how drastically his face has changed since then, sparks a strange curiosity in Woo-bin... Then one day, a chance encounter in the restroom leads Woo-bin to witness suspicious marks left on Seo-yoon's body.
...What the hell is this bastard's deal?