What happens when a groundbreaking, chaotic, and deliberately forgotten comedy show becomes the secret origin story for a generation of comedy legends? "For Madmen Only" pulls back the curtain on "The Harold," an explosively innovative and notoriously undocumented stage show from the early 1990s that served as a creative crucible. Featuring insights from stars like Bob Odenkirk, Adam McKay, and Tim Meadows, this documentary delves into the anarchic spirit of a live experiment where rules were broken and careers were forged in the fire of pure improvisation. Directed by Heather Ross, the film explores the elusive legacy of this show, tracking down its scattered alumni and piecing together why such a pivotal moment was nearly lost to time. It’s a compelling and often hilarious quest to reclaim a piece of comedy history, celebrating the madmen and women who risked everything for a laugh, and the untold story that shaped the face of modern humor.