A family holiday turns into a fight for survival in the inhospitable wilderness of remote Scotland.

Twenty years after his teenage crush on a football-mad schoolgirl, Gregory is back at his old school, teaching English. When two of his pupils uncover evil practices at a local factory they want their teacher to help them expose the wrong-doer, who happens to be Greg's old schoolfriend.

A surreal triptych adapted by "Trainspotting" author Irvine Welsh from his acclaimed collection of short stories. Combining a vicious sense of humor with hard-talking drama, the film reaches into the hearts and minds of the chemical generation, casting a dark and unholy light into the hidden corners of the human psyche.