Election Night 1979: Margaret Thatcher is about to come into power. A young black man is held on suspicion of murdering his pregnant wife. Officers Karn and Wilby, racist to the core and high on the prospect of a Conservative Party victory, try to lure the suspect into a quick confession. But the night has just begun... Callous humiliation gives way to a barrage of sinister violence. As morning approaches the police desperately resort to physical and mental torture, all leading to a devastating conclusion.