如何做爱 How to Have Sex

　　艾娃（黛西·雷德利 饰）是一名绝望的妇女，她的丈夫在一次灾难性军事实验后失踪，她加入了一个“尸体搜寻小组”，但当她埋葬的尸体开始出现生命迹象时，她的搜寻工作发生了令人毛骨悚然的转变。

 你看不见的地方，谍战从未停止交锋！我国最新战机的涉密信息外泄，国家安全面临威胁，国安小组迅速行动抓捕间谍，在信任与背叛的漩涡中，一场惊心博弈悄然上演……

　　Kyohei Aizawa, an assassin for a covert non-governmental espionage group in Japan called "SEEK", is grieving over the loss of his girlfriend from a tragic plane accident. The leader of "SEEK",Ryo Mikumo, contacts him for an emergency mission; save a fellow agent, recover a new highly explosive liquid called "RDX@", stop a ruthless Yakuza leader, Sojiro Kotsuki, and his gang before they take over Japan. Although the Ninjas were thought to have disappeared... the new breed of assassins live on helping to protect Japan and all that is right; the Ninjas are coming soon.

一名警察遇害身亡，查案的警员发现这与其双胞胎兄弟及他们令人不安的过去有关，一场令人心惊胆战的真相探查就此展开。