Nancy Luo is shocked to learn that her former best friend Jamie Ruan, top ranked junior at Sinclair Prep, is missing. She’s even more shocked when word of her mysterious death starts to spread, and thanks to The Proctor—someone anonymously incriminating them via the school’s social media app—Nancy and her friends, Krystal, Akil, and Alexander, are the prime suspects.

Jamie knew secrets about each of them, of course, and somehow so does The Proctor. The group must uncover the true killer before The Proctor exposes more than they can bear and costs them more than they can afford, like Nancy’s full scholarship. Soon, Nancy can’t help but suspect that one of her friends is lying. Or is there a missing piece in her own memory that could expose the truth—not just about Jamie’s fate, but also about herself?