A loner struggles with childhood tragedy. Seeking refuge, he immerses himself in martial art films. A life changing moment releases unknown abilities, taking him closer to solving the mystery of his past. But the truth will come at a cost

　　小女孩Aurora(Sloan)去寻求邻居(米科尔森)的帮助：她相信家人被住在自己床底下的一个妖怪吃掉了，而这个邻居恰巧是训练有素的杀手，并且确信Aurora的父母是被一群来杀自己的人给误杀，于是，杀手的第一要务变成了保护小女孩的安全，两人一起上路，并肩面对自身的恶魔。