Blue McAllister has been destroyed. A terrible incident that happened in childhood leaves its mark: no matter what decision she makes, it all comes down to one thing - the monster must be brought to justice. Having spent years studying partnerships, criminal groups of liars, thieves and murderers, Blue will rely solely on her skills as a special agent to put the head of the Breckenridge clan in his place.

But retribution comes directly with the risk of suffering a loss in the form of Breckenridge's son — until the sin becomes more than Blue bargained for. She always knew that the promise she made to herself was dangerous for her life, but that it would never be dangerous for her heart.