As the on-call doctor for a club that caters to assassins, Liam Bexley has learned to set some strict boundaries: Never ask questions about their work. Always stay professional. And never, date a client. Easy rules to follow, and ones that Liam takes very seriously. Being lonely and boring is a small price to pay to keep trained killers out of his personal life. In one chance encounter with the handsome hitman Francisco Delgado, Liam's routine and existence is completely altered. Pulled into the insanity of rival assassin guilds and a high profile death, Liam is suddenly stuck eluding danger at every turn with a man he has no business fraternizing with. Even if he is interesting. And really hot. And covered in tattoos. Liam may have to rethink those boundaries...