Ava McKenzie is a creature of habit. Life passes her by, and she does nothing to change it. She has worked the same job since college, orders the same dish at her favorite restaurant, and only reads books by authors she already knows. There is nothing new or surprising in her life... Until her best friend marries an Englishman. Then the newlywed asks her to look after the house in London while she and her husband go on their honeymoon. Ava immediately agrees. She believes this is the best opportunity to shake things up. Ava throws herself into her new lifestyle: she wants to try everything, go everywhere and never get stuck in a rut again. Of course, a dead man in a parking lot was not part of her plans. Owen Walker spends every day in a new place doing a new job. As one of the world's preeminent assassins, he is free to choose his victims - and he never fails a mission. When a new goal takes him back to his hometown, he hopes to spend time in a familiar place. What he didn't expect was to help an attractive, confused American woman figure out how she ended up being the target of a hitman. While Ava and Owen dodge bullets, can they also escape their undeniable attraction to each other? Or will all this chemistry burst out like sultry and dangerous fireworks?