In this modern creature feature, a scary internet meme called "Grimcutty" stirs up panic amongst all the parents in town, convinced it's making their kids harm themselves and others. When a real-life version of Grimcutty starts attacking teen Asha Chaudry, her parents believe that she's cutting herself as part of a challenge. With her phone taken away and no one who believes her, Asha has to figure out how to get through to her parents and stop the Grimcutty once and for all.

电影改编自1957年的百老汇音乐剧，讲述了20世纪50年代纽约街头的“喷气机帮(Jet)”和 “鲨鱼帮(Sharks)”之间的争斗，以及分属不同帮派的“苦命鸳鸯”托尼（安塞尔·埃尔格特 饰）和玛丽亚（瑞秋·齐格勒 饰）的爱情。