Immacolata Borelli is an accounting student in London trying to live an ordinary life. But when her ruthless family back home in Naples throws her hard-earned stability into chaos, Immacolata decides to collaborate with justice—to betray her own clan. Together with senior Carabinieri investigator Mario Castrolami, she unwittingly sets into motion a terrifying and unpredictable series of events.

Gerald Seymour brings to The Collaborator the same irresistibly compelling storytelling that made his previous books, among them the bestselling Harry's Game and The Walking Dead, stunningly gripping and nuanced thrillers. Seymour has created a heart-stopping plot immersed in the Camorra's violent underbelly of crime and double- dealing that extends far beyond Italy's shores.