一位女歌手在目睹其一位歌迷诡异自尽后，身边开始出现各种奇怪的微笑现象，其歌迷纷纷精神失常，开始疯狂地微笑，对女歌手穷追不舍。...

After realising he has died at the scene of a car crash, Nathan descends into the depths of hell, where he is doomed to experience the pain of tortured souls along the way....

影片根据Robyn Davidson所著自传体畅销书《轨迹》改编，讲述了一名女子实现渴望已久的追逐荒野大漠的梦想，独自一人在四只骆驼和一条忠诚的狗的陪伴下穿越澳大利亚沙漠的故事。她从悉尼出发到艾丽斯斯普林斯，独自展开一场横越澳洲的千里沙漠之行，最后抵达澳洲西海岸，影片记述了这段旅程，演绎了一段动人心魄的传奇旅程、一曲跌宕起伏的沙漠恋歌...