Romance author Mona is human. Ship's doctor Fausto is a vampire. He can never be one of her kind and she's afraid to become one of his. As they sail the Mediterranean on writers' cruise, the couple is stalked by vampire hunters, and by Fausto's notorious ex-wife, Lucrezia Borgia. Events force Mona and Fausto team up with the hunters to capture Lucrezia, but where can they go from here? With Fausto's friend and Mona's editor vamping it up and a hunter on the loose, can this bloody good cruise have a happy ending?