A woman calls the police to a block of flats in Luton, where a bloody hand print is found on the wall, and a disturbing case unfolds.

The police receive a call from a young man claiming that there are body parts buried in the garden of a house on an estate in Luton. A search team is dispatched but they face a wall of silence at the scene. Detectives suspect that it is a fantasy but, more worryingly, they may be being deliberately drawn into a long-running and brutal tit-for-tat gang war. Cameras follow every twist and turn of the case as it escalates further when the mother of the young man is stabbed in the chest. Police begin investigating the case as an attempted murder. This is real-life crime drama at its most intense.