After the tragic deaths of her husband and daughter, Sarah Doyle moves back to her childhood home with her estranged brother, Richard. It's not long before Sarah begins to experience supernatural phenomena of a violent and hostile nature. Bewildered and desperate, Richard enlists the aid of a paranormal investigator who confirms that Sarah has become possessed by a powerful demon. Together, the three men will go to battle to save Sarah's soul.

盟约2017官方售价：39元/张，特价票19.9元一张，公众号【gg_dyp】订票最低8.5折，你也去公众号查询自己所在地的票价吧，每个地方都不一样，平均优惠5~30元/张。

推荐影院：万达、金逸、CGV、大地、橙天嘉禾、博纳、UME、万象、卢米埃、喜满客、幸福蓝海、太平洋等连锁影院，观影环境好，优惠力度比较大～ 出票速度杠杠的！（小影院出票会比较慢哦）

购票方法：点击公众号菜单中的买电影票，然后任选其中一个渠道，定位之后，选择盟约2017，点击特惠购票，付款之后等待出票，然后拿着这个取票码到电影院取票。