Follow the exploits of Jack Black and Kyle Gass, the two halves of Tenacious D, the self-proclaimed "greatest band on earth." Their music is heavy on power chords and lyrics about sex, Satan, and why they are the greatest band on Earth.

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.