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　　After a mysterious accident at a research camp on the Isle of Gran Manan, a CEO hires a team of blue-collar mercenaries to extract his daughter, a scientist working at the camp. Upon arrival, the team soon learns that not only is the island surrounded by a wormhole that causes time to reset every three days, but it's also crawling with hideous monsters. As they learn more about the nature of time, space, and the creatures on the island, they quickly realize that death may be the easiest way to escape the island.

　　故事发生在大约200年前的越南阮朝，探子阿坚受某村庄的邀请，前来调查神秘失踪的案子....

　　记者玲（李心洁饰）的男友Peter获得一宗刑事案件的新闻线报，前去取证途中突然遭遇交通事故意外身亡。玲觉得事有蹊跷，调查后发现一宗模特命案。女模特Helen裸死于家中浴缸，富豪之子张承志没有不在场证据，但事件竟被警方低调处理，张承志的相关证据也被消除。玲为不愿男友枉死，誓要调查出事件真相，但报社总编辑曾达时（梁家辉饰）却不愿为玲伸出援手。无奈之下，玲只好求助常常被追债的飞(黄秋生饰)与马仔(葛民灰)帮助她调查真相。飞原来是警察出身，在调查中，他发现Peter的死因确有蹊跷。随着调查的进行，黑暗中的黑手不断想将玲置于死地，究竟事件的真相能否登上报纸的A1头条？真相与言论自由的赛跑，在香港的午夜开始。