The documentary follows the main stages of Janis Joplin’s life, from her performance at Monterey Pop in 1967 to Woodstock in 1969 and Festival Express in 1970, including interviews with relatives, friends and rock stars of her time. The soundtrack features Janis Joplin’s hits, among which Cry Baby, Mercedes Benz and Piece of My Heart. Amy Berg shows the woman behind the myth, other than the rock&roll icon, unveils a gentle, innocent yet strong woman. Well known as rock icon, the personal story of Janis Joplin is very complex. Janis serves as a narrator, telling us her life through the letters she wrote to her friends, relatives and lovers, leading us in a journey that starts from her childhood.
米尔德雷德（弗兰西斯·麦克多蒙德 Frances McDormand 饰）的女儿在外出时惨遭奸杀，米尔德雷德和丈夫查理（约翰·哈克斯 John Hawkes 饰）之间的婚姻因此走到了尽头，如今，她同儿子罗比（卢卡斯·赫奇斯 Lucas Hedges饰）过着相依为命的生活。一晃眼几个月过去了，案件仍然没有告破预兆，而警方似乎早已经将注意力从案子上转移了开来。 被绝望和
