Frost: Portrait of a Vampire

When two mercenaries, Jonathan "Jack" Frost and Nat McKenzie, are sent on a deadly mission to the Middle East, Nat is bitten by a creature known only as the Vampire Demon. When the two retrun to the U.S., Nat begins to change, growing faster and stronger and, suddenly invincible. but a string of deadly murders follows him as well, and soon it becomes clear that Nat has joined the undead, and only one man can stop him. (official distributor synopsis)