Keesha is a neurobiology researcher determined to discover the secret to intelligence to save humanity from itself. What she learns leads her to realize a bigger threat comes from beyond the stars. Yuri is a Russian vampire whose long-dead feelings respond to the scientist whose brain he admires but whose curves he can't resist. Will his love reach the places in her heart that she has ignored for so long? And can they defeat the prophecy of the undead to find happiness sharing eternity?

As a gifted child, Ying was given to the state by her Chinese parents, leading to a harsh life. Her un-dead existence has been worse. When Keesha and Yuri urge her not to further the destruction of humans, they bring a blue-skinned alien Visitor. She never expected to discover her own humanity in the arms of an alien—he never expected to fall in love. Can their passion bridge the gap between their races? And can they join forces with the other inhabitants of Earth, to face the return of the Mayan aliens and save humanity?