Four brilliant university students are forced to confront themselves in terrifying ways when their Quantum Physics experiment leads to an entangled parallel existence that leaves them questioning who they are and what is real.

　　中情局探员卡门来到神秘的地下监狱，审问一名可穿越时空的恐怖份子，他声称自己已经犯下一连串恐怖攻击，将陆续发生。卡门的任务便是厘清前任审讯员为何离奇死亡，卡门心知这一切的答案将扯出更大疑问：这名囚犯的身份真假？目的又是什么？时间一分一秒流逝，卡门和囚犯展开心理角力，胜利者将改写未来…