Lots of things can happen behind locked doors in the dark. Heechul finds himself battling against a monster only he can see. The other members put it down to Hangkuyung leaving. They're all tyring to get over the loss of their precious china man. No notices just how far Heechul is falling. Only Kyuhyun can see and hear Heechuls whimpers in the nights, his glazed over gaze, but is Kyuhyun enough to save Heechul from what goes on behind locked doors? Or is Heechul to remain a victim of his own mind?