Prom Pact is set at the height of prom season. High school senior Mandy Coleman and her best friend and fellow outsider Ben are surrounded by over-the-top '80s-themed Promposals. However, Mandy keeps her eyes focused on a different goal: her lifelong dream of attending Harvard. When she finds out her acceptance has been deferred, she is determined to do whatever she can do to get herself off the waitlist, even if that means asking for help from the one person she abhors - popular all-star jock Graham Lansing, whose father is a powerful senator and Harvard alum. Once Mandy becomes Graham's tutor, she begins to realize there's more to him than she thought and perhaps something more to life than Harvard.

　　当真实犯罪迷伊娃-沃（露西·海尔 Lucy Hale 饰）在她 30 岁生日那天被她的好朋友们推到约会应用程序的世界里时，她突然发现自己处于一桩真实谋杀案的中心。 随着她最喜欢的播客揭露了谋杀案的新细节，她意识到与她约会的三个男人中，有一个可能就是肆虐全城、臭名昭著的 "向右滑动杀手"！ 现在，伊娃和她的朋友们要做的，就是在这部精彩绝伦的喜剧惊悚片中，搞清楚哪一个约会对象是同性恋、潜在的丈夫或杀手。

痴迷于真实案件的伊娃·沃在她 30 岁生日那天被她的好朋友们邀请到了某款约会软件上，她因此开启了自己浪漫的约会之旅。但随着她最喜欢的播客披露了最近谋杀案的细节，她意识到她聊过的三个男人中的一个可能就是凶手。