Ellie and Brandon are two detectives at the Porting City Detective and Vampire Hunting Agency who happen to run into Vanguard, an immortal and owner of the agency, one night while hunting a vampire. The three meet formally the next day and Ellie and Brandon's world change completely. Ellie finds out Brandon is not who she thinks and, hurt by his betrayal and lack of trust in her, seeks the truth which is far darker and uglier than she thinks. Brandon, a man bent on revenge for the death of his parents, lives in Consumer Central where vampires reign in the night and hunts them down to find his parents' killers ends up letting his thirst for vengeance endanger the only person alive he cares about and has to work with Vanguard and others to make things right before it is too late.