DCI Colin Sutton is asked to review the police investigation into a series of rapes, sexual assaults and burglaries that took place in south-east London between 1992 and 2009. Working with Det Supt Simon Morgan and the Operation Minstead team, the detective proposed a strategy he believed could catch one of Britain's most prolific rapists.

With absolutely no guarantee it will work, the Force Tasking Group have to come to a decision about funding Colin's high stakes gamble. Meanwhile, the news of a new and very vicious attack on an elderly lady makes the team all the more determined to catch their prey.