How does it work?' Jack asks when he opens his present - a mobile phone. Later that night, Jack is a prisoner in a taxi in the empty streets of the dark city. He now tries his mobile phone for the first time. Can it save his life?
「我要怎麼使用它?」Jack拆開他的禮物,是一隻手機。當晚,在一條無人的街上,他被俘虜,困在一台計程車裡。此時,他第一次使用他的新手機。這隻手機究竟能不能救了Jack?