A young woman commits murder to keep her classmates' social media careers under her thumb. After killing a popular friend, she turns her sights on a new girl, but the girl's mother suspects the truth and will fight to protect her daughter.

查理·克劳（达拉斯·罗伯茨 Dallas Roberts 饰）是一档电台深夜节目的主持人，长久以来他的事业和生活水平持续走低，节目收听率不升反降，面临被砍掉的危险；生活上他业已离异，与前妻、儿子的关系势同水火。某晚，查理接听了名叫杰夫的17岁少年的电话，少年声称正被神秘的影子人所困扰，精神几近崩溃，此后还给查理寄送了相关医学实验的资料。虽然查理将其当作少年无聊的恶作剧，但是杰夫在连线过程中举枪自杀还是在社会上引起了不小的震动。蒙受公众作秀指责的查理，为了挽救收听率不得不按照制作人的指示对此事进行跟踪调查。在此过程中，曾与之有过一面之缘的年轻女性意外死亡，令其受到极大的触动。 越来越多影子人的目击者发表声明，一系列秘密进行长达三十年的实验悄悄揭开神秘面纱……

Two high school filmmakers decide to create the illusion of a haunting on an unsuspecting neighbor.

An actor who is considering the role of a supermarket manager arrives at a grocery store on the outskirts of Los Angeles to do some field research. He subsequently becomes stranded, without a car or cell phone, and accepts a ride home with Scarlet, a cashier who is about to interview for a new job. The actor rediscovers the essence of his craft while helping Scarlet gain the confidence she needs to change her life.