Callum Harker never believed in the supernatural.

As a private investigator, seeing is believing, and there's nothing in this world that can't be explained.

When he learns of a small town on the coast of Otravire, and the unexplained attacks and murders plaguing it, he thinks he's accepted a simple task-find the killer and bring him to justice.

Follow Callum as he delves into the darkness to uncover the sinister evil lurking beneath the surface of Umbra Harbor, with the help of the eccentric local doctor and the charming yet reclusive Count.

Questioning everything he's ever known and believed in, can he set aside his personal feelings and biases, or will he be the next victim of the dreaded Bloodsucker?