在华盛顿呼风唤雨的政治说客斯隆女士，在美国枪击事件接连发生的情况下，不惜牺牲自己的职业生涯，以督促政府实施更严格的联邦法律规范枪支。In the high-stakes world of political power-brokers, Elizabeth Sloane (Jessica Chastain) is the most sought after and formidable lobbyist in D.C. Known equally for her cunning and her track record of success, she has always done whatever is required to win. But when she takes on the most powerful opponent of her career, she finds that winning may come at too high a price.