Deadlier than the Mafia, the Camorra never forget, and never forgive.

She is an Italian accountancy student in London, and her boyfriend Eddie teaches at a language school. But the prime reason Immacolata Borelli came to Britain was to look after her gangster brother, wanted for multiple murders back home in Naples.

For the Borelli clan are major players in the Camorra, a crime network more close-knit and ruthless than the Sicilian Mafia.

Mario Castrolami is a senior Carabinieri investigator of the Camorra, his career dedicated to destroying the corruption and violence of the clans. When Immacolata calls from London to say she is prepared to collaborate with justice - to betray her own family - he knows she is setting in motion a terrifying and unpredictable series of events.

The Borellis will not lose their criminal empire without a vicious fight. They will use anything and anyone to prevent her from giving evidence against them. Even Eddie, and Eddie's life.