ThedocumentaryfollowsthemainstagesofJanisJoplin’slife,fromherperformanceatMontereyPopin1967toWoodstockin1969andFestivalExpressin1970,includinginterviewswithrelatives,friendsandrockstarsofhertime.ThesoundtrackfeaturesJanisJoplin’shits,amongwhichCryBaby,MercedesBenzandPieceofMyHeart.AmyBergshowsthewomanbehindthemyth,otherthantherock&rollicon,unveilsagentle,innocentyetstrongwoman.Wellknownasrockicon,thepersonalstoryofJanisJoplinisverycomplex.Janisservesasanarrator,tellingusherlifethroughthelettersshewrotetoherfriends,relativesandlovers,leadingusinajourneythatstartsfromherchildhood.