Alone follows a writer seeking peace and solitude in the countryside in an attempt to recover from tragedy and finish her book. However, as the welcoming country house turns into a living hell, she soon realizes that her inner demons are not the worst of her problems.

　酷好中国的李爱锐（约瑟夫·费因斯JosephFiennes饰），情愿摒弃因奥运夺冠赢取回来的优质生存，回到正遭受日本残暴侵犯的中国，在这段磨难日子中结识了徐牛（窦骁饰），二人合营忍辱刚毅地匹敌凶残暴虐的侵犯者，救护了一多量被日本人关押在潍县集中营里的列国战俘。