The husband of a prominent and infamously ruthless barrister is found in horrific condition after a robbery and brutal assault. Now in a coma, a major investigation is launched using the newly formed, experimental Metropolitan Police Serious Crime Analysis Unit.

Jessica Russell is an experienced CSI with degrees in psychology and criminology with an exceptional Masters in Investigative psychology and behaviour analysis. But Jessica's first job as team leader of MSCAN is entirely new to her: to bring together a team of three trusted officers. Between them, the team has dealt with every kind of murder and major crime scene - their expertise ranges from forensic DNA to blood splatter analysis, digital forensics and beyond.

Now they must piece together the complex puzzle at the heart of this brutal crime. If it was a robbery gone horrifically wrong, what was so important to have been stolen?