Dedicating her life to the study of cellular regeneration, Sarah has travelled the world hunting for proof that aging is a disease of the blood – and one that can be cured. Little did she expect, while attending a medical seminar, to capture the heart of a dashing and mysterious genetics professor with a deep secret. An immortal vampire, Michael is the missing key that she had been searching for all these years.

After Michael agreed to let her study his blood, Sarah finds herself standing on the edge of an incredible scientific breakthrough. Is she willing to risk life and love by going public with her dark discovery?

But, unbeknown to even herself, Sarah is no mere mortal…