Detention has never been worst. Stuck with the all-time bad boy, Chris Larkin, Mary O'Hara needs to socialize with him in order to survive the night. Because in Nightlock High School, detention is different. There was a talk that in order to go home safely, the detainees need to go through a maze and succeed. And right now, that's what Mary & Chris needs to face. Will they get over their differences and work together? Or will they continue to build a barrier between them and eventually be trapped inside the Maze?