Mystery writer Sian Anderson leaves her boyfriend John for three weeks of intense writing in the isolated Greek town of Monemvassia. Upon her arrival in the ancient, deserted, walled-in fortress, she is met by Elias Appleby, the round eccentric landlord who guides her through mysterious underground passageways to the house where she will work. He warns her to stay inside at night because of the killer winds that arrive after dark.

In an underground fight club, blackbelt Travis Brickley is killed after losing to the evil martial arts master Brakus. Travis' death is witnessed by Walter Grady, the son of his best friend Alex Grady. Alex and his partner, Tommy Lee, vow to avenge their friend's death by defeating Brakus and shutting down the fight club.