British MI-5 agent Jane Nichols is burnt out. Her recent successful infiltration of a group of IRA terrorists was, she swears, the last assignment in a career haunted by a mission that resulted in her lover's death. Now the bad memories have caught up with her and her only respite is in the private-eye novels she writes. When her literary agent offers her a trip to Georgia, it seems the perfect opportunity to leave MI-5 - and her former life - behind.

But the shadow of her past has a long reach, and in the city of Savannah Jane discovers more than just atmosphere, for among its historic houses and murky swamps are two men: one she could learn to love and one she's hated for seven years. And as she's drawn back into the fold of MI-5, Jane must summon all of her undercover expertise in a desperate last mission - knowing all the while that against her oldest and most ruthless enemy, the slightest mistake could mean certain death...