Trevor Reznik is a machinist in a factory. An extreme case of insomnia has led to him not sleeping in a year, and his body withering away to almost nothing. He has an obsessive compulsion to write himself reminder notes and keep track of his dwindling weight, both scribbled on yellow stickies in his apartment. The only person he lets into his life in an emotional sense is Stevie, a prostitute, although he has an infatuation with Maria, a single mother waitress working in an airport diner. His co-workers don't associate with and mistrust him because of not knowing what is going on in his life that has led to his emaciated physical appearance. A workplace incident further alienates him with his coworkers, and in conjunction with some unfamiliar pieces of paper he finds in his apartment, Trevor believes that someone or some people - probably one or some of his coworkers - are out to get him, using a phantom employee named Ivan as their front. As Trevor goes on a search for evidence as to Ivan's schemes and whereabouts, Trevor may come to a true understanding of what has caused his insomnia. 机械师——看内疚如何吞噬我们的心灵。Guilty + desire = delusion & nightmare。分裂电影，还是我们。机械师:原来记忆也能杀人。【严重剧透】还原剧情，真实和幻觉交叉的双叙事线。只有贝尔可以看。〈机械师〉的秘密。简要剧情分析，没看明白的可供参考。克里斯蒂安贝尔的疯狂。经脉被打通之爽快。 特拉沃（克里斯汀•贝尔 Christian Bale 饰）是一个机械师，他的工作内容繁忙机械，日复一日，令他日渐消瘦，连睡眠都出现了严重的问题。长达一年里，特拉沃成为了无法睡眠的怪人。怪事也从此陆续发生：他在公寓里面发现了一张神秘纸条；总是感觉有一个共事的工友，在一次意外中工友失去了一只手，所有的同事都把这个意外归咎于特拉沃，令特拉沃众叛亲离，唯有身边当应召女郎的女友一直在支持自己。然而，事实又好像并不是这样，那张纸条，那个工友，似乎都不是现实的事情，特拉沃陷入了巨大的谜团当中。
