A group of young scientists work at a frantic pace to invent they are not quite sure what, but their efforts start demonstrating interesting side effects. From their work in a small cottage industry of error checking devices they are forced to confront the fact that they have discovered something too valuable to market. As they explore the potential of their machine, they are caught in a frantic loop to second guess themselves.
Science fiction in the cinema has largely been dominated by the visual impact, and so this is a welcome (for some) return to the world of ideas. This is not an easy-rise entertainment film but one where you have to concentrate to keep up, working out the logical implications of what's happening. If made on the scale of Men in Black or the Matrix it would descend to the level of spoof as it is we follow the two main characters knowing that their actions are having momentous effects on the world around them and on themselves. Instead of flashy graphics, we are left to keep the ramifications of the story in mind as the characters themselves grapple with what they know is happening but can't even let themselves look at directly.