Only a vampire can solve these crimes - a vampire private eye named Samantha Moon...

Private investigator Samantha Moon is working undercover for the Fullerton Police Department's new top-secret Vampire Crimes Special Unit (VCSU).

With the increase in supernatural crimes in and around Orange County, Detective Sherbet needs Sam's vampire detective talents to solve the real and growing threats to Fullerton's citizens. This time, Adze, an underground demon, is after revenge, and he's marked Sam and everyone she knows, including her family.

When Sam discovers a massive enchanted medieval castle right in the heart of Fullerton, she realizes that it's not just a portal to Adze's underground lair. There's much more to the castle than she first anticipated. The deeper Sam and her partner, Brent Cole, investigate, the more she unravels ancient secrets and disturbing unrest.

One clue leads to another, and when Sam comes face to face with Adze, she has no choice but to confront his beastly form and risk everything to save her family and friends. This time, will her enemy be too powerful to thwart, or will the castle's secrets unleash another adversary far more powerful and lethal than Adze, the demon that threatened everyone in her life?