an invitation to the Senior Scavenge. In 2020, Violet Warren and her friends are the lucky ones. Eight girls will break into the Poison Apple Carnival after hours for a scavenger hunt, then at sunrise they'll gather for a celebration in honor of their upcoming senior year.

But someone else has another game planned. Minutes after the girls sneak into the carnival, a madman in a rubber mask begins slashing his way through the group and Violet quickly realizes his motives are personal. As she watches her friends die in a series of increasingly bizarre attacks, she must fight to survive while trying to answer the question: What could she have done to earn a fast-pass for a roller coaster ride straight to hell?