Dr. Vivian Clark has always been fascinated by myths and the supernatural. A brilliant scientist, she sets up a secret laboratory to research reported cases of vampirism, hoping to discover a rational, scientific explanation.

When a mysterious client asks her to study an ancient coffin he's acquired, Vivian discovers inside it the remarkably preserved body of a stunningly handsome young man with odd fangs. Against her better judgement, she removes blood samples, jumps back when he suddenly revives.

Vivian gazes in shock at Adrian Blackwell, charismatic Viscount of Casterton, who claims he was turned into a vampire centuries ago. Angry to have awakened after a decade of forced hibernation, Adrian is thrown into an even worse nightmare realizing the modern world may have advanced enough to expose vampire-kind.

Though mistrustful of each other, adventurous Vivian and old-world Adrian must form a tentative alliance when they learn a zealous vampire hunter is spying on Adrian's vampire clan. A dangerous attraction grows as Vivian is drawn deeper into Adrian's exotic, shadowy world. Passion flares when they must pretend to be a couple. But with the hunter closing in, will the secrets they keep tear them apart? Will Vivian give up her life's work if it means endangering the entire vampire race?