Nancy Drew finds herself working as an undercover student, Becca Sawyer, at an exclusive girls-only boarding school called Waverly Academy in upstate New York. Some of the students have been getting threats from someone known as "The Black Cat." After receiving two threatening letters, something bad will happen to the recipient. Nancy dives into the world of clique-conscious teenage girls to solve the mystery. She is soon informed that only girls on the second floor have been receiving threats. The girls on this floor are all in the running for Valedictorian, a highly desired position and a very big deal for those in the running. But it's not long before she realizes there's more to Waverly than meets the eye, and it's not just the conversations of a cute calculus teacher she overhears whi