写一段关于《尼尔·帕萨恩》的内容简介，要求能把整部片子的内容和背景交代出来，并且内容简洁，能够吸引观众兴趣。
In a Scottish town in 1974, factory workers refuse to carry out repairs on warplane engines in an act of solidarity against the violent military coup in Chile. Four years pass before the engines, left to rust in factory yard, mysteriously disappear in the middle of the night.