Orphaned sisters Sabrina and Daphne are sent to live with their mysterious grandmother. The girls start school, and Daphne is lucky to get Snow White for a teacher, but Sabrina is stuck with mean Mr. Grumpner and a class of mildly psychotic sixth graders.

When Mr. Grumpner is murdered, the sisters must discover which Everafter is responsible. Can the Sisters Grimm solve the crime?