Last month, Mack went to Richmond to catch a serial killer. He caught the killer but he needed a vampire's help to do it. Not just any vampire. The Richmond Vampire. Adrian Bellafleure. Who was apparently waiting for him, and while it went against every bit of Mack's vampire hunter training, they had a fling.

But was it only a fling?

Since he can't get Adrian out of his head, Mack decides to give himself a birthday present: a surprise trip to Richmond. Except real life interferes and Mack can't leave New Orleans.

So Adrian surprises him by showing up anyway.

Adrian's a helluva birthday present, but in the midst of all their celebrating, they've got to decide whether or not their "fling" should last a lot longer.