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.

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.