On Halloween night, vampire Guardian Ava Reed marries her childhood companion Adrian Blackwood. Ava conceals her identity as a vampire Guardian, hoping to retire from her duty and live an ordinary life after finishing one final assignment. Adrian pretends to be chronically ill, while in truth he is the top ranked hunter of the Hunter Bounty Network, longing to lay down his weapons upon completing his last contract. A missing ruby necklace and a murder unearth the sixteen year old conspiracy buried within the Blackwood family. The newly weds become adversaries in nocturnal hunts, and their dual secret identities are eventually exposed after repeated clashes. Abandoning their respective factions, they join forces to rescue their imprisoned loved one, set traps for their enemies, and stage their own deaths through an explosion to buy time. Just as they believe they have escaped and can embrace quiet days in a seaside town, pursuit from the Hunter Bounty Network closes in. They have won their love, yet true freedom still eludes them.
