Author Lisa Jewell did an excellent job with keeping us guessing who might be responsible for the murder. Was it the charming school headmaster? His spying son? The infatuated neighbor? The mentally ill woman who thinks everyone is out to get her? One of the female high school students who has a crush on the headmaster? There's not so much jumping around in this book compared to some of her other books. It flows more smoothly between the short police interview transcripts from every few chapters and the story itself from different people's voices. This "whodunit" book is a must read. You will never guess who really did it until it's right in your face towards end of the story!