Jaz Parks is partnered with Vayl, a vampire from Romania. They work for the CIA as assassins. They work with each other to chase paranormal enemies. Both of them have secrets and these secrets are about to come home to roost. Vayl and Jaz are great characters and you can understand some of their reticence about issues. The two of them are great together and really come across as quite believable. I look forward to reading more in this series.