All Denney Silber wants from her senior year at the University of Michigan is to enjoy sorority parties, football games, and concerts - plans that go awry when she discovers her friend, Helen, dead in the office of the faculty member Denney most despises. Compelled to solve Helen's murder, Denney quickly realizes that her own life is in danger. She can no longer trust friends, teachers, or even the cutest guy in Poetry 331 - and yet, she still believes "friends don't kill friends."