Summer for Louise means sand, surf, and... the supernatural. Louise spends every summer at her grandma's house with her older sister, cousins, and Rodin the dog. But, this year, her plans to relax and read comics on the beach are about to be turned upside down by a mischievous ghost, bored with being forced to haunt the same house. While the other girls are wrapped up in romance and teenage problems, Louise takes refuge with her new paranormal BFF, determined to escape the drama and just enjoy her summer break, something that is proving to be a lot harder than she anticipated.