Pleasure’s Fury by Mari Carr

While on the trail of a madman, Antonio Starabba finds something unexpected—the killer’s next victims, tortured, in pain, but alive. Leila and Karl are both members of The Masters’ Admiralty, the same powerful secret society Antonio is sworn to defend as a security officer—aka assassin. Rescuing them means letting the killer escape, and once they’re safe, Antonio is overcome with a deep need to protect them, and takes them to one of his family’s villas to rest and recover.

As the weeks pass feelings develop between the three of them, but there’s a problem. The killer is still out there, eluding capture, and he’s made it clear that his next victims will be Leila, Karl…and Antonio.