Lilly Summers' life started in a hotel room ten years ago. With only the contents of a fat, unmarked envelope to give her any clue who she used to be, Lilly accepts her past and continues in the direction it seems she was headed. Ten years later, Lilly is cold, competent and at the top of her game as a freelance assassin. Her only friend is her manager, Saanvi, who accompanies her across the world. Saanvi trusts Lilly with her life, but Lilly is not as she seems and Saanvi faces lose her affectionate contract killer forever.