刘京生,奔四十的人,父母姐姐都在国外,京生一个人守着胡同里的三间大平房,东西向的两间分别租给山东卖煎饼的胖姐、和从湖北来北京考博的王先彪。京生自己住着南向的里外两大间,日子过得悠哉游哉。其实,京生也不是缺那几个钱,把房子租出去,一来是有人收拾,最主要的是京生人热情,有人一块住着,显得热闹。。The film tells the story of a small train riding without its driver and the passengers locked inside. They all had originally their individual goals and destinations but now they one common target - getting out of the train or eventually stopping it. Although the train is moving very slowly, a real drama (partially very absurd) breaks out both inside and outside the train where...。