The Collaborator

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 reason Immacolata Borelli came to Britain was to look after her gangster brother, wanted for murder 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.
When Immacolata calls senior Carabinieri investigator Mario Castrolami 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.