20 years after her husband's death, a woman keeps more than just his memory alive. Needing help at home, she takes in a student, but soon detects a risk of losing her husband to the girl. Does the girl have even a ghost of a chance?
Set in the country-town of Upson Down, the comedy drama follows eleven-year-old Annie Shearer and her adopted stray dog Runt, as they try to save the family farm by competing in the Agility Course Grand
米尔德雷德（弗兰西斯·麦克多蒙德FrancesMcDormand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JohnHawkes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LucasHedges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。被绝望和痛苦缠绕的米尔德雷德租下了高速公路边上的三块巨型广告牌，在上面控诉警方办案无能，并将矛头直接对准了警察局局长威洛比（伍迪·哈里森WoodyHarrelson饰）。实际上，威洛比一直隐瞒着自己身患绝症命不久矣的事实。因为这三块广告牌，米尔德雷德和威洛比的生活发生了翻天覆地的变化。
两位享乐女士被赶出城，遇到一名被射入地狱的赏金猎人。在恢复健康后，女士们决定他需要她们的帮助来追查吉拉·格莱姆斯，一个残忍、凶残的强盗，以获得一半的赏金。
