Two years ago, Evie Morgan's husband disappeared. Under suspicion of his murder, no one believed Evie's story about the mysterious creature with the black eyes that killed Tom and assumed his identity. Now, trying to survive in the ruins of post-invasion London, Evie's world is once more thrown into turmoil, when she meets the alien that killed her husband. On the run from his own kind, he offers her insider knowledge on how to defeat the Greys, in return for her protection. At risk from her fellow survivors discovering 'Tom's' true identity, taking the alien back to her camp is going to be no easy task for Evie. Vowing to kill him once he has delivered the information they need to strike back at their enemy, she is forced to pretend the man by her side is Tom, and that means faking to everyone that they are a married couple. With the alien's genetic make-up assuming more of Tom's identity every day, will Evie really be able to kill the creature that is becoming so much like the husband she loved? Struggling between her hatred for her husband's killer and a growing attraction for him that confuses her, the time is coming for Evie to make a decision. Pull the trigger? Or put her trust in the creature that tore her whole world apart?