After being bullied on the first day at her new school, young Rosie Cullen has found a new friend in a mysterious loner named Cara. Rosie knows her only by her first name, but feels she has an obligation to be there for her in an otherwise lonely existence. Mira, Rosie's gifted mother, allows the budding friendship for a time, but soon senses that something isn't quite right.Dark, disturbing secrets involving the strange little girl begin to surface and the Cullens will eventually discover that what they initially thought was a worthy deed has turned out to be an unforgettable nightmare.