Oscar Diggs, a small-time circus illusionist and con-artist, is whisked from Kansas to the Land of Oz where the inhabitants assume he's the great wizard of prophecy, there to save Oz from the clutches of evil.

Fed up of his business partner, Ernest Trend hires the services of two exterminators. When things go drastically wrong and they murder the wrong man, the race is on to frame an innocent video surveillance man.