A hard and shocking story of life in a British borstal for young offenders.

A prison visitor becomes involved with a convicted sex offender.

The death of a factory owner signals a change for all of the staff, none more so than a sheet metal worker called Watson, who is denied a promised promotion and finds his position as the unofficial leader of the sheet metal workers challenged by Gregg, a new apprentice who joins the factory and isn't willing to follow the accepted order.