Liesl Weiss works in the rare books department of a large university. When her boss has a stroke and she's left to run things, she discovers that the library's most prized manuscript is missing. Liesl tries to inform the police about the missing priceless book but is told to keep quiet. Then a librarian unexpectedly stops showing up to work. Liesl must investigate both disappearances as it becomes clear that someone in the department must be responsible for the theft. What Liesl discovers shakes the very foundation on which she has built her life.