This low-budget British chamber piece has an intriguing scenario, so it's a shame that the po-faced, sci-fi-tinged screenplay fixates on the applicants' efforts to detect invisible ink on their exam papers.

You're left with the nagging suspicion that, with just one more script polish, it could have been something very special.

A modern morality tale in the sleek guise of a sci-fi-tinged thriller. The setting is modest, the ambition is big.

A lot of high emotions, jarring shifts in tone and a conclusion that makes it all seem pointless in retrospect, or, in other words, a dumb method of whittling away an hour and a half of your time...