The Rosenbach brothers were some of the most obsessively successful book collectors of the 20th century. In the skilled hands of Ben Katchor and Mark Mulcahy, the Rosenbach story has turned into a stage show told through drama, pop songs, and projected animated visuals. Katchor is the MacArthur and Guggenheim fellow whose graphic novels include The Jew of New York and The Beauty Supply District. Mark Mulcahy was the frontman for Polaris, the revered rock-band muse of The Adventures of Pete & Pete. Their pop opera comes to California through the JCCSF.