As the victim of a violent knife attack fights for his life in hospital, Crime Scene Coordinator Jo Ward is dispatched to his home in Birmingham to lead the forensic investigation into identifying his attacker.

The victim is unable to tell police what happened because he has been put in a medically induced coma, and the investigation becomes more challenging when no witnesses are prepared to give a statement to the police. Jo and her team work to gather vital evidence that could help police quickly identify and arrest the attacker.