Janis Joplin rose from Texas coffeehouses to become rock's first female superstar, her raw voice and stage presence built on a philosophy of living entirely in the moment. This film traces that arc alongside the heroin addiction that ran underneath it, using interviews and archival material to show how the same appetite for intensity that made her a phenomenon on stage also pulled her toward self-destruction offstage. It follows her final period closely, reconstructing the pressures of fame, touring, and substance use that converged in the hours before her death. Rather than treating her as a myth, the film stays with the specifics of addiction and the people around her who watched it happen, framing her story as a cautionary account of what unchecked excess costs even the most talented performers. It closes on the same question that has followed her legacy for decades: how much of her genius depended on the very habits that killed her.