When her best friend disappears during Mardi Gras, microbiologist Claire Brooks is determined to find her. Her only lead is a bar called Once Bitten – a haven for the vampire–obsessed. And while Claire generally prefers science nerds, something about the bar's tall, dark, and delish bartender makes her mouth water…

Bar owner Rafe Moreau is pretty sure that there's more to Claire than uptightness and frumpy clothes. And as they delve further into the dark, seedy underworld Claire and Rafe discover a sizzling hunger that won't be satisfied…