Far away, in the desolate Serbian wilderness, a U.S.-led fracking crew uncover a dormant monster gestating inside a centuries-old French soldier. Now awakened and exposed in its most dangerously fragile state, it tears through the men on the grounds in search of a new womb.

Stolen by crusaders on the night of his birth, Radu (Anders Hove) has no knowledge of his bloodline: his mother is a demon; his father is a vampire. Trained and exploited by a brotherhood of mystic monks to slay all enemies of the church, fate brings him back one night to the castle of his father, armed with the monster-slaying Sword of Laertes, to destroy the vampire Vladislas and reclaim a holy relic: The Bloodstone. The events of that night turn Radu from a noble man into a vampire with no master, setting him on a centuries-long quest for sustenance, and companionship, for the treacherous one who stole him from the sun, and for the Bloodstone he hopes will bring him peace.

At the breaking point of their dysfunctional marriage, Cass and Gav take a trip through Serbia. After meeting a mysterious local, Saint Peter, who eagerly offers to be their guide, the couple embarks on an impromptu sightseeing expedition that soon takes a series of sinister turns.