MATT和安娜是一对年轻夫妇住在伦敦。安娜开始了她的职业生涯，知道自己想要什么|而马特还在苦苦寻找自己的人生目标。从表面上看，他们是幸福的，但紧张局势已开始安装。后来有一天早上蒙面歹徒破门进入该单位，并殴打前马特绑架安娜| 锁定他进入一个神秘的背心和留给他的手机。马特告诉背心包含他必须通过发给他下面的说明提供一个包移动电话。如果他失败|试图寻求帮助|或者从他们的指示偏离|他们会杀了安娜。在一天的课程马特使他的方式整个伦敦在孤注一掷女友保存为字符的主机尝试从他的使命出轨了。
MATT and ANNA are a young couple living in London. Anna is starting her career and knows what she wants| whilst Matt is still struggling to find his purpose in life.
On the surface they are happy but tensions are beginning to mount. Then one morning masked thugs break into the flat and kidnap Anna before assaulting Matt| locking
him into a mysterious vest and leaving him a mobile phone. Matt is told the vest contains a package which he must deliver by following instructions issued to him via
the mobile phone. If he fails| tries to seek help| or deviates from their instructions| they will kill Anna. Over the course of one day Matt has to make his way
across London in a desperate bid to save his girlfriend as a host of characters attempt to derail him from his mission.
