From David Steinberg, a rabbi’s son from Winnipeg, Canada, who at age fifteen enrolled at Hebrew Theological College in Chicago (the rabbinate wasn’t for him) and four years later, entered the master’s program in English literature at the University of Chicago, until he saw Lenny Bruce, the “Blue Boy” of Comedy, the coolest guy Steinberg had ever seen, and joined Chicago’s Second City improvisational group, becoming, instead, the comedian’s comedian, director, actor, working with, inspired by, teaching, and learning from the most celebrated, admired, complicated comedians, then and now—a funny, moving, provocative, insightful look into the soul, wit, and bite of comedy and comedians—a universe unto itself—of the last half-century.