A behind-the-scenes documentary of "The Black Rider/Der schwarze Reiter" or "The Black Rider: The Casting of the Magic Bullets" a "musical fable" in the avant-garde tradition created through the collaboration of theatre director Robert Wilson, musician Tom Waits, and writer William S. Burroughs. The story is based on a German folktale called "Der Freischütz", which had previously been made into an opera by Carl Maria von Weber. Here we meet the makers and the ensemble of the Thalia Theater production in Hamburg that opened on March 31, 1990.