The best summer of Harper's life might be her last. On the way to camp Moon Lake, the most magical summer camp on earth, all Harper can think about is her parents' looming divorce. Soon enough, though, the outdoor movie theater, the water park, and the chocolate buffet begin to work their magic on her. But then campers start to disappear, and Harper notices the counselors acting unusual. The cheerful facade of the camp falls apart to reveal strange...

Follows thirteen-year-old neurodivergent Maudie during an eventful summer in California with her father, where she struggles with whether to share a terrible secret about life with her mom and stepdad.