Janis Joplin's powerful, soulful voice blazed new creative trails before her untimely death in 1970, aged 27. As director Amy Berg's documentary reveals Joplin's on-stage bravado and uninhibited sexual persona hid hurt and insecurity stemming from her childhood. On relocating from Texas to San Francisco and discovering the blues, she found an outlet for her loneliness and fell into a community that embraced and celebrated her talent. This retrospective includes some of Joplin's most iconic performances, which embodied the musical and cultural revolution of the 1960s. Narrated by Cat Power.