The film centers on the Herdman kids, who are the absolute worst. They lie, they steal, they bully… and they’ve hijacked the town Christmas pageant. As the rowdy and raucous siblings force themselves into all of the lead roles, they drive the pageant’s director, Grace (Judy Greer), and other members of her family, including husband Bob (Holmes), up the wall. But through their misfit mischief, these unlikely messengers might turn out to be the ones to deliver the town’s sensational and moving portrayal of the true meaning of Christmas.

　　警司昆廷（莫里斯•迪恩•温特Maurice Dean Wint 饰）、监狱专家兼传感器专家伦尼斯（维尼•罗宾逊 Wayne Robson 饰）、医生霍洛韦（尼基•瓜达尼 Nicky Guadagni  饰）、建筑师沃思（戴维•休利特 David Hewlett）、数学系的大学生利文（尼科勒•德搏尔 Nicole de Boer  饰）和身患孤独症的学者卡赞（安德鲁•米勒 Andrew Miller 饰），六个素不相识的人，一觉醒来后发现一同身处于由一个个形状相同的立方体组成的结构复杂的高度精密迷宫中！
　　他们唯一的出路只有逃离这座迷宫，然而，一个个立方体尽管外貌相同，然而里面的机关却各不一样，复杂异常。依靠利文数学知识的推理，他们终于以为发现迷宫的运行规律，凭此一次次解开各个机关，迷宫的边缘近在眼前。
　　当他们正欲合力逃出迷宫之际，意外发生了。