In a city of shadows, an assassin emerges to wreak her revenge.

Betrayed by her colleagues, Acid Vanilla, the deadliest assassin at Annihilation Pest Control, embarks on a globe-trotting mission of bloody retribution.

In Hanoi, she faces her greatest challenge yet: infiltrating a shadowy organization led by the only man she's ever loved.

With time running out and a city gripped by fear, Acid must navigate a treacherous web of villains and confront her own conflicted feelings to reach her target before he finds her.

As the body count rises and a local man seeks her help, Acid will need every deadly trick to survive in this non-stop thriller from Matthew Hattersley.