90年代當紅搖滾樂團「她好樣的」主唱貝琪,每次開唱粉絲都把體育館塞爆。她瘋狂、熱情,卻又有著無法掌控的自我毀滅特質。隨著樂團名氣起起伏伏,貝琪與團員、母親、男友和女兒之間的距離也忽遠忽近。她要帶領樂團走向成功,得先設法馴服自己躁動不安的靈魂。A self-destructive punk rocker struggles with sobriety while trying to recapture the creative inspiration that led her band to success.