Litvak traces the outlines of comic cosmopolitanism in a series of performances in film and theater and before HUAC, performances by Jewish artists and intellectuals such as Zero Mostel, Judy Holliday, and Abraham Polonsky. At the same time, through an uncompromising analysis of work by informers including Jerome Robbins, Elia Kazan, and Budd Schulberg, he explains the triumph of a stoolpigeon culture that still thrives in the America of the early twenty-first century.