An assassin haunted by the past. A detective risking his pension and his life to find her. And a far greater evil afoot than either of them can imagine.

Too volatile to stay in the U.S. government’s elite kill squad, Kana Watanabe is ambushed and betrayed by her own team. Driven underground and cloaked in the anonymity of the dark web, she emerges twice as deadly––the most sought-after assassin on the planet. But she is no longer alone. Deep within her something powerful, something unearthly, has taken hold.

 Now risking everything on a  triple-kill contract that will make or break her career, she is forced to abandon all her own rules for a mysterious and demanding client. Her actions uncover a trail of hidden lives and an emerging power vacuum that baffles her as much as the detective determined to find her.

 Is the entity inside her friend or foe? And will her instincts be enough to see her through this mandate before not only the detective and her former team catch up with her, but also her violent Yakuza past?