Everything you need to understand or teach The Unwedding by Ally Condie.
The Unwedding by Ally Condie tells the story of Ellery, a recently divorced high school teacher spending what would have been her 20th wedding anniversary alone at a luxury resort in Big Sur California on the same weekend as a wedding between a young couple. When a storm cuts the resort off from the outside world, and guests start dying in mysterious circumstances, Ellery becomes embroiled in the attempt to solve the mystery. It deals with themes of marriage, survival, and community.