在这部夺命日记惊悚片中,还在攻读比较宗教硕士学位的IG小模Marie Clark（Claudia Maree Mailer克劳蒂亚马里梅勒饰），用自己的名气和影响力来赚取自己的学费，想要摆脱自己受虐的过去。Marie的生活好不容易走上轨道，直到有一天她的日记被一位恐怖粉丝偷走。这名粉丝开始寄情书给Marie，告诉Marie他将杀死任何对她造成危险的人。Marie周围的死亡案件接踵发生，Marie周围的朋友开始觉得自己成了嫌疑犯。Marie必须面对她不想面对的过去，揭开杀人凶手的真面目，让生活回归平静。
In a world that objectifies women as swipes on a screen, Marie Clark is determined to use her influencer status to pay for her college degree. But when a psychotic fan starts sending love letters to her home, while murdering the people closest to her, this young brave heroine discovers that the only way to get justice, is by unmasking the killer herself, and confronting the demons of her past.
